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SC26C562 CMOS dual universal serial communications controller (CDUSCC)
Product data sheet Supersedes data of 2004 Mar 29 2006 Aug 10
Philips Semiconductors
Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
DESCRIPTION
The Philips Semiconductors SC26C562 Dual Universal Serial Communications Controller (CDUSCC) is a single-chip CMOS-LSI communications device that provides two independent, multi-protocol, full-duplex receiver/transmitter channels in a single package. It supports bit-oriented and character-oriented (byte count and byte control) synchronous data link controls as well as asynchronous protocols. The SC26C562 interfaces to synchronous bus MPUs and is capable of program-polled, interrupt driven, block-move or DMA data transfers. The SC26C562 (CDUSCC) is (PIN) hardware and (REGISTER) software compatible with the existing SCN26562 (DUSCC). CDUSCC will automatically configure to the NMOS DUSCC register map (default mode) on power-up. The operating mode and data format of each channel can be programmed independently. Each channel consists of a receiver, a transmitter, a 16-bit multifunction counter/timer, a digital phase-locked loop (DPLL), a parity/CRC generator and checker, and associated control circuits. The two channels share a common bit rate generator (BRG), operating directly from a crystal or an external clock, which provides sixteen common bit rates simultaneously. The operating rate for the receiver and transmitter of each channel can be independently selected from the BRG, the DPLL, the counter/timer, or from an external 1X or 16X clock, making the CDUSCC well-suited for dual-speed channel applications. Data rates up to 10 Mbit/s are supported. The transmitter and receiver each contain a sixteen-deep FIFO with appended transmitter command and receiver status bits and a shift register. This permits reading and writing of up to sixteen characters at a time, minimizing the potential of receiver overrun or transmitter underrun, and reducing interrupt or DMA overhead. In addition, a flow control capability is provided to disable a remote transmitter when the FIFO of the local receiving device is full. Two modem control inputs (DCD and CTS) and three modem control outputs (RTS and two general purpose) are provided. Because the modem control inputs and outputs are general purpose in nature, they can be optionally programmed for other functions. The SC26C562 CDUSCC is optimized to interface with processors using a synchronous bus interface, such as the 8086, and iAPX86 family. For systems using an asynchronous bus, such as the 68000 and 68010, refer to the SC68C562 documentation. Refer to the CMOS Dual Universal Serial Communication Controller (CDUSCC) User's Manual for a complete operational description.
* Watchdog timer * 0 to 10 Mbit/s data rate * Programmable bit rate for each receiver and transmitter selectable
from: - 19 fixed rates: 50 to 64 kbaud - One user-defined rate derived from programmable counter/timer - External 1X or 16X clock - Digital phase-locked loop
* Parity and FCS (frame check sequence LRC or CRC) generation
and checking
* Programmable data encoding/decoding: NRZ, NRZI, FM0, FM1,
Manchester
* Programmable channel mode: full- or half-duplex, auto-echo, or
local loopback
* Programmable data transfer mode: polled, interrupt, DMA, wait * DMA interface
- Compatible with Synchronous and Asynchronous bus DMA controllers - Half- or full-duplex operation - Single or dual address data transfers - Automatic frame termination on counter/ timer terminal count or DMA DONE (EOPN)
* Transmit path clear status * High speed data bus interface: 160 ns bus cycle * DPLL operation up to 312.5 kHz with internal clock * Interrupt capabilities
- Vector output (fixed or modified by status) - Individual interrupt enable bits - Programmable internal priorities - Maskable interrupt conditions - 80XX/X compatible - Bit rate generator - Event counter - Count received or transmitted characters - Delay generator - Automatic bit length measurement
* Multi-function programmable 16-bit counter/timer
FEATURES General Features
transmitter
* Modem controls
- RTS, CTS, DCD, and up to four general purpose I/O pins per channel - CTS and DCD programmable auto-enables for Tx and Rx - Programmable interrupt on change of CTS or DCD
* Dual full-duplex synchronous/ asynchronous receiver and * Multi-protocol operation
- BOP: HDLC/ADCCP, SDLC, SDLC loop, X.25 or X.75 link level, etc. - COP: Single SYNC, dual SYNC, BiSYNC, DDCMP - ASYNC: 5-8 bits plus optional parity
* On-chip oscillator for crystal * TTL compatible * Single +5 V power supply
* Sixteen character receive and transmit FIFOs with interrupt
threshold control
* FIFO'ed status bits
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
Asynchronous Mode Features
* Character length: 5 to 8 bits * Odd or even parity, no parity, or force parity * Up to two stop bits programmable in 1/16-bit increments * 1X or 16X Rx and Tx clock factors * Parity, overrun and framing error detection * False start bit detection * Break generation with handshake for counting break characters * Detection of start and end of received break * Character compare with optional interrupt on match * Transmit and receive up to 10 Mbit/s at 1x or 1 Mbit/s at 16x data
rates
* Extended address and control fields * Short frame rejection for receiver * Detection and notification of received end of message * CRC generation and checking * SDLC loop mode capability
Character-Oriented Protocols
Bit-Oriented Protocol
* Character length: 5 to 8 bits * Detection and transmission of residual character: 0-7 bits * Automatic switch to programmed character length for I field * Zero insertion and deletion * Optional opening PAD transmission * Detection and generation of FLAG, ABORT, and IDLE bit patterns * Transmit 7 or 8 bit ABORT * Detection and generation of shared (single) FLAG between
frames
* Character length: 5 to 8 bits * Odd or even parity, no parity, or force parity * LRC or CRC generation and checking * Optional opening PAD transmission * One or two SYN characters * External sync capability * SYN detection and optional stripping * SYN or MARK line-fill or underrun * Idle in MARK or SYNs * Parity, FCS, overrun and underrun error detection * Optional SYNC exclusion from FCS * BISYNC features
- EBCDIC or ASCII header, text and control messages - SYN, DLE stripping - EOM (end of message) detection and transmission - Auto transparency mode switching - Auto hunt after receipt of EOM sequence (with closing PAD check after EOT or NAK) - Control character sequence detection for both transparent and normal text - Parity generation for data and LRC characters
* Detection of overlapping (shared zero) FLAGs * Idle in MARK or FLAGs * Secondary address recognition including group and global
address
* Single- or dual-octet secondary address
ORDERING INFORMATION
Tamb = 0 C to +70 C. Serial data rate = 10 Mbit/s maximum
Type number Package Name SC26C562C1A PLCC52 Description plastic leaded chip carrier; 52 leads Version SOT238-2
ABSOLUTE MAXIMUM RATINGS1
SYMBOL Tamb Tstg VCC VS Storage temperature Voltage from VCC to GND3 Voltage from any pin to ground3 PARAMETER Operating ambient temperature2 RATING 0 to +70 -65 to +150 -0.5 to +7.0 -0.5 to VCC +0.5 UNIT C C V V
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
BLOCK DIAGRAM
CHANNEL MODE AND TIMING A/B DPLL CLK MUX A/B D0-D7 BUS BUFFER DPLLA/B BRG INTERFACE/ OPERATION CONTROL A7 CONTROL LOGIC A7 ADDRESS DECODE COUNTER TIMER A/B C/T CLK MUX A/B CTCRA/B RDYN WRN RDN A1-A6 CEN RESETN MPU INTERFACE R/W DECODE DMA CONTROL CCRA/B PCRA/B RSRA/B TRSRA/B ICTSRA/B RTxDRQAN/GPO1AN RTxDRQBN/GPO1BN TxDRQAN/GPO2AN TxDRQBN/GPO2BN RTxDAKAN/GPI1AN RTxDAKBN/GPI1BN TxDAKAN/GPI2AN TxDAKBN/GPI2BN EOPN CONTROL DMA INTERFACE GSR CMR1A/B CMR2A/B OMRA/B TRCR A/B FTLR A/B TRMR A/B CID INTERNAL BUS CTPRHA/B CTPRLA/B CTHA/B CTLA/B TRANSMIT A/B TRANS CLK MUX TPRA/B TTRA/B TX SHIFT REG TRANSMIT 16 DEEP FIFO TELR A/B CRC GENERATOR SPEC CHAR GEN LOGIC TxD A/B
TRxCA/B RTxCA/B CTSAN/LCAN CTSBN/LCBN DCDBN/SYNIBN DCDAN/SYNIAN RTSBN/SYNOUTBN RTSAN/SYNOUTAN SPECIAL FUNCTION PINS
RECEIVER A/B RCVR CLK MUX RPRA/B RTRA/B S1RA/B S2RA/B INTERRUPT CONTROL ICRA/B RCVR SHIFT REG RECEIVER 16 DEEP FIFO RFLR A/B CDUSCC LOGIC CRC ACCUM BISYNC COMPARE LOGIC
RxD A/B
IRQN IACKN
IERA/B IVRM IER1 A/B IER2 A/B IER3 A/B
X1/CLK X2 OSCILLATOR
SD00239
Figure 1. Block diagram
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
PIN CONFIGURATION
INDEX CORNER 8 7 1 47 46
PLCC
20 21 TOP VIEW Pin Function 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 IACKN A3 A2 A1 RTxDAKBN/GPI1BN IRQN NC RDYN RTSBN/SYNOUTBN TRxCB RTxCB DCDBN/SYNIBN NC RxDB TxDB TxDAKBN/GPI2BN RTxDRQBN/GPO1BN TxDRQBN/GPO2BN/RTSBN CTSBN/LCBN D7 D6 D5 D4 RDN RESETN GND 33
34
Pin Function 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 CSN WRN EOPN D3 D2 D1 D0 NC CTSAN/LCAN TxDRQAN/GPO2AN/RTSAN RTxDRQAN/GPO1AN TxDAKAN/GPI2AN TxDA RxDA NC DCDAN/SYNIAN RTxCA TRxCA RTSAN/SYNOUTAN X2 X1/CLK RTxDAKAN/GPI1AN A6 A5 A4 VCC SD00740
Figure 2. Pin configuration
PIN DESCRIPTION
MNEMONIC A1-A6 D0-D7 PIN 4-2, 51-49 33-30, 23-20 TYPE I I/O NAME AND FUNCTION Address Lines: Active-HIGH. Address inputs which specify which of the internal registers is accessed for read/write operation. Bidirectional Data Bus: Active-HIGH, 3-State. Bit 0 is the LSB and bit 7 is the MSB. All data, command and status transfers between the CPU and the CDUSCC take place over this bus. The data bus is enabled when CSN and RDN, or CSN and WRRN are LOW during interrupt acknowledge cycles and single address DMA acknowledge cycles. Read Strobe: Active-LOW input. When active and CSN is also active, causes the content of the addressed register to be present on the data bus. RDN is ignored unless CSN is active. Write Strobe: Active-LOW input. When active and CSN is also active, the content of the data bus is loaded into the addressed register. The transfer occurs on the rising edge of WRN. WRN is ignored unless CEN is active. Chip Select: Active-LOW input. When active, data transfers between the CPU and the CDUSCC are enabled on D0-D7 as controlled by RDN or WRN and A1-A6 inputs. When CSN is HIGH, the data lines are placed in the 3-State condition (except during interrupt acknowledge cycles and single address DMA transfers). Ready: Active-LOW, open drain. Used to synchronize data transfers between the CPU and the CDUSCC. It is valid only during read and write cycles where the CDUSCC is configured in `wait on Rx', `wait on Tx' or `wait on Tx or Rx' modes, otherwise it is always inactive. RDYN becomes active on the leading edge of RDN and WRN if the requested operation cannot be performed (viz, no data in RxFIFO in the case of a read or no room in the TxFIFO in the case of a write).
RDN WRN
24 28
I I
CSN
27
I
RDYN
8
O
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
MNEMONIC IRQN
PIN 6
TYPE O
NAME AND FUNCTION Interrupt Request: Active-LOW, open-drain. This output is asserted upon occurrence of any enabled interrupting condition. The CPU can read the general status register to determine the interrupting condition(s), or can respond with an interrupt acknowledge cycle to cause the CDUSCC to output an interrupt vector on the data bus. Interrupt Acknowledge: Active-LOW. When IACKN is asserted, the CDUSCC responds by either forcing the bus into high-impedance, placing a vector number, call instruction or zero on the data bus. The vector number can be modified or unmodified by the status. If no interrupt is pending, IACKN is ignored and the data bus placed in high-impedance. Crystal or External Clock: When using the crystal oscillator, the crystal is connected between pins X1 and X2. If a crystal is not used, an external clock is supplied at this input. This clock is used to drive the internal bit rate generator, as an optional input to the counter/timer or DPLL, and to provide other required clocking signals. When a crystal is used, a capacitor must be connected from this pin to ground. Crystal 2: Connection for other side of crystal. When a crystal is used, a capacitor must be connected from this pin to ground. If an external clock is used on X1, this pin should be left floating. Master Reset: Active-LOW. A LOW on this pin resets the transmitters and receivers and resets the registers shown in Table 1 of the CDUSCC Users' Guide. Reset is asynchronous, i.e., no clock is required. Channel A (B) Receiver Serial Data Input: The least significant bit is received first. If external receiver clock is specified for the channel, the input is sampled on the rising edge of the clock. Channel A (B) Transmitter Serial Data Output: The least significant bit is transmitted first. This output is in the marking (HIGH) condition when the transmitter is disabled or when the channel is operating in local loopback mode. If external transmitter clock is specified for the channel, the data is shifted on the falling edge of the clock. Channel A (B) Receiver/Transmitter Clock: As an input, it can be programmed to supply the receiver, transmitter, counter/timer, or DPLL clock. As an output, it can supply the counter/timer output, the transmitter shift clock (1X), or the receiver sampling clock (1X). Channel A (B) Transmitter/Receiver Clock: As an input, it can supply the receiver, transmitter, counter/timer, or DPLL clock. As an output, it can supply the counter/timer output, the DPLL output, the transmitter shift clock (1X), the receiver sampling clock (1X), the transmitter BRG clock (16X), The receiver BRG clock (16X), or the internal system clock (X1 / 2). Channel A (B) Clear-to-Send Input or Loop Control Output: Active-LOW. The signal can be programmed to act as an enable for the transmitter when not in loop mode. The CDUSCC detects logic level transitions on this input and can be programmed to generate an interrupt when a transition occurs. When operating in the BOP loop mode, this pin becomes a loop control output which is asserted and negated by CDUSCC commands. This output provides the means of controlling external loop interface hardware to go on-line and off-line without disturbing operation of the loop. Channel A (B) Data Carrier Detected or External Sync Input: The function of this pin is programmable. As a DCD active-LOW input, it acts as an enable for the receiver or can be used as a general purpose input. For the DCD function, the CDUSCC detects logic level transitions on this pin and can be programmed to generate an interrupt when a transition occurs. As an active-LOW external sync input, it is used in COP mode to obtain character synchronization for the receiver without receipt of a SYN character. This mode can be used in disc or tape controller applications or for the optional byte timing lead in X.21. Channel A (B) Receiver/Transmitter DMA Service Request or General Purpose Output: Active-LOW. For half-duplex DMA operation, this output indicates to the DMA controller that one or more characters are available in the receiver FIFO (when the receiver is enabled) or that the transmit FIFO is not full (when the transmitter is enabled). For full-duplex DMA operation, this output indicates to the DMA controller that data is available in the receiver FIFO. In non-DMA mode, this pin is a general purpose output that can be asserted and negated under program control. Channel A (B) Transmitter DMA Service Request, General Purpose Output, or Request-to-Send: Active-LOW. For full-duplex DMA operation, this output indicates to the DMA controller that the transmit FIFO is not full and can accept more data. When not in full-duplex DMA mode, this pin can be programmed as a general purpose or a Request-to-Send output, which can be asserted and negated under program control. Channel A (B) Receiver/Transmitter DMA Acknowledge or General Purpose Input: Active-LOW. For half-duplex single address operation, this input indicates to the CDUSCC that the DMA controller has acquired the bus and that the requested bus cycle (read receiver FIFO when the receiver is enabled or load transmitter FIFO when the transmitter is enabled) is beginning. For full-duplex single address DMA operation, this input indicates to the CDUSCC that the DMA controller has acquired the bus and that the requested read receiver FIFO bus cycle is beginning. Because the state of this input can be read under program control, it can be used as a general purpose input when not in single address DMA mode.
IACKN
1
I
X1/CLK
47
I
X2 RESETN
46 25
O I
RxDA, RxDB TxDA, TxDB
40, 14 39, 15
I O
RTxCA, RTxCB
43, 11
I/O
TRxCA, TRxCB
44, 10
I/O
CTSA/BN, LCA/BN
35, 19
I/O
DCDA/BN, SYNIA/BN
42, 12
I
RTxDRQA/BN, GPO1A/BN
37, 17
O
TxDRQA/BN, GPO2A/BN, RTSA/BN
36, 18
O
RTxDAKA/BN, GPI1A/BN
48, 5
I
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
MNEMONIC TxDAKA/BN, GPI2A/BN
PIN 38, 16
TYPE I
NAME AND FUNCTION Channel A (B) Transmitter DMA Acknowledge or General Purpose Input: Active-LOW. When the channel is programmed for full-duplex single address DMA operation, this input is asserted to indicate to the CDUSCC that the DMA controller has acquired the bus and that the requested load transmitter FIFO bus cycle is beginning. Because the state of this input can be read under program control, it can be used as a general purpose input when not in full-duplex single address DMA mode. Done (EOP): Active-LOW, open-drain. EOPN can be used and is active in both DMA and non-DMA modes. As an input, EOPN indicates the last DMA transfer cycle to the TxFIFO. As an output, EOPN indicates either the last DMA transfer from the RxFIFO or that the transmitted character count has reached terminal count. Channel A (B) Sync Detect or Request-to-Send: Active-LOW. If programmed as a sync output, it is asserted one bit time after the specified sync character (COP or BISYNC modes) or a FLAG (BOP modes) is detected by the receiver. As a Request-to-Send modem control signal, it functions as described previously for the TxDRQN/RTSN pin. +5 V Power Input Signal and Power Ground Input
EOPN
29
I/O
RTSA/BN, SYNOUTA/BN
45, 9
O
VCC GND
34, 52 26, 13, 41, 7
I I
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
DC ELECTRICAL CHARACTERISTICS4,5
Tamb = 0 C to +70 C, VCC = 5.0 V 10 %4,5 SYMBOL PARAMETER Input LOW voltage: All except X1/CLK X1/CLK Input HIGH voltage except X1/CLK All except X1/CLK X1/CLK Output LOW voltage: All except IRQN7 IRQN Output HIGH voltage (Except open drain outputs) X1/CLK input LOW current10 X1/CLK input HIGH current10 X2 short circuit current Input LOW current RESETN, TxDAKN, RxDAKN Input leakage current Output off current HIGH, 3-State data bus Output off current LOW, 3-State data bus Open drain output LOW current in off state: EOPN, RDYN IRQN Open drain output HIGH current in off state: EOPN, IRQN, RDYN Power supply current (see Figure 19 for graphs) Input capacitance9 Output capacitance9 Input/output capacitance9 VCC = GND = 0 V VCC = GND = 0 V VCC = GND = 0 V IOL = 5.3 mA IOL = 8.8 mA IOH = -400 A VIN = 0, X2 = open VIN = VCC, X2 = GND X1 = open, VIN = 0 V X1 = open, VIN = VCC VIN = 0 V VIN = 0 V to VCC VIN = VCC VIN = 0 V VIN = 0 V VIN = 0 V VIN = VCC TEST CONDITIONS LIMITS Min - - 2.0 0.8 x VCC - - VCC - 0.5 -150 - - - -15 -1 - -1 -15 -1 -1 - - - - Typ - - - - - - - - - - - - - - - - - - 25 - - - Max 0.8 0.8 - VCC - 0.5 0.5 0.0 150 -15 +15 -0.5 +1 +1 - -0.5 - 1 80 10 15 20 UNIT
VIL
V V V V V V V A A mA mA A A A A A A A mA pF pF pF
VIH
VOL VOH IILX1 IIHX1 ISC SCX2 IIL II IOZH IOZL IODL
IODH ICC13 CIN COUT CI/O
NOTES: 1. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation section of this specification is not implied. 2. Clock may be stopped (DC) for testing purposes, or when CDUSCC is in non-operational modes. 3. This product includes circuitry specifically designed for the protection of its internal devices from damaging effects of excessive static charge. Nonetheless, it is suggested that conventional precautions be taken to avoid applying any voltages larger than the rated maxima. 4. Parameters are valid over specified temperature range. 5. All voltage measurements are referenced to ground (GND). For testing, all inputs except X1/CLK swing between 0.2 V and 3.0 V with a transition time of 20 ns maximum. For X1/CLK, this swing is between 0.2 V and 4.4 V. All time measurements are referenced at input voltages of 0.2 V and 3.0 V and output voltages of 0.8 V and 2.0 V, as appropriate. 6. See Figure 20 for test conditions for outputs. 7. Tests for open drain outputs are intended to guarantee switching of the output transistor. Measurement of this response is referenced from midpoint of the switching signal to a point 0.2 V above the actual output signal level. This point represents noise margin that assures true switching has occurred. 8. Execution of the valid command (after it is latched) requires 3 rising edges of X1 (see Figure 15). 9. These values were not explicitly tested; they are guaranteed by design and characterization data. 10. X1/CLK and X2 are not tested with a crystal installed. 11. X1/CLK frequency must be at least the faster of the receiver or transmitter serial data rate. 12. Timing is illustrated and referenced to the WRN and RDN inputs. The device may also be operated with CSN as the `strobing' input. CSN and RDN (also CSN and WRN) are ANDed internally. As a consequence, the signal asserted last initiates the cycle and the signal negated first terminates the cycle. 13. VO = 0 V to VCC, Rx and Tx clocks at 10 MHz, X1 clock at 10 MHz.
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
AC ELECTRICAL CHARACTERISTICS4,5,6,7
Tamb = 0 C to +70 C; VCC = 5 V 10 %
RESETN
tRELREH
SD00205
Figure 3. Reset Timing LIMITS Min 200 Max -
SYMBOL tRELREH RESETN LOW to RESETN HIGH
PARAMETER
UNIT ns
A6-A1 tADVRDL tRDHCEH CSN (CEN) tCELRDL tRDLRDH RDN tRDLDDV tRDLDLZ D0-D7 tRDLRYL RDYN A NOTE: A Wait on Rx. Receiver FIFO empty. tRYZDDV tRDHDDI tRDHRDL tRDHDDF tRDLADI tCEHCEL
SD00240
Figure 4. Read Cycle12 LIMITS Min 5 0 50 - - 130 valid9 - 0 30 5 30 - 10 Max - - - 150 130 - 90 - - - - 40 -
SYMBOL tADVRDL tCELRDL tRDLADI tRDLRYL tRDLDDV tRDLRDH tRYZDDV tRDHCEH tCEHCEL tRDHDDI tRDHRDL tRDHDDF tRDLDLZ Address valid to RDN LOW CEN LOW to RDN LOW RDN LOW to address invalid RDN LOW to RDYN LOW RDN LOW to read data valid RDN LOW to RDN HIGH
PARAMETER
UNIT ns ns ns ns ns ns ns ns ns ns ns ns ns
RDYN high-impedance to read data RDN HIGH to CEN HIGH CEN HIGH to CEN LOW RDN HIGH to read data invalid RDN HIGH to RDN LOW RDN HIGH to data bus floating
RDN LOW to data bus low-impedance9
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
AC ELECTRICAL CHARACTERISTICS (Continued)
A6-A1 tADVWRL tWRHCEH CSN (CEN) tCELWRL tWRLWRH WRN tWDVWRH D0-D7 tWRLRYL RDYN A NOTE: A Wait on Tx. Transmitter FIFO full. tRYHZWRH tWRHWRL tWRHWDI tWRLADI tCEHCEL
SD00241
Figure 5. Write
Cycle12 LIMITS Min 5 0 - 0 100 60 30 50 30 5 0 Max - - - - - - 150 - - - -
SYMBOL tADVWRL tCELWRL tWRLRYL tWRHCEH tWRLWRH tWDVWRH tCEHCEL tWRLADI tWRHWRL tWRHWDI tRYHZWRH Address valid to WRN LOW CSN LOW to WRN LOW WRN LOW to RDYN LOW WRN HIGH to CSN HIGH WRN LOW to WRN HIGH Write data valid to WRN HIGH CEN HIGH to CEN LOW WRN LOW to address invalid WRN HIGH to WRN LOW WRN HIGH to write data invalid
PARAMETER
UNIT ns ns ns ns ns ns ns ns ns ns ns
RDYN high-impedance to WRN HIGH9
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
AC ELECTRICAL CHARACTERISTICS (Continued)
INTERRUPT REQUEST LOCKED IRQN VECTOR SETTLING IACKN VECTOR LOCKED A A SERVICE ROUTINE Cleared through software
A tIALDDV
D7-D0 B tIAHDDI
C
C
tIAHDDF
NOTES: A ICR[5:4] = 01 or 10 (mode 1 or mode 2) B Call instruction (mode 2) C ICR[5:4] = 11 (mode 3)
SD00208
Figure 6. Interrupt Acknowledge Cycle LIMITS Min Max 130 60
SYMBOL tIALDDV tIAHDDF tIAHDDI tIALDLZ tIAHIAL
PARAMETER IACKN LOW to data bus valid IACKN HIGH to data bus floating IACKN HIGH to data bus invalid IACKN LOW to data bus LOW impedance9 IACKN HIGH to LOW
UNIT ns ns ns ns ns
5 10 30
CEN
WRN tWRHGOV GPO1_N AND/OR GPO2_N OLD DATA NEW DATA
SD00209
Figure 7. Output Port Timing LIMITS Min - Max 100
SYMBOL tWRHGOV
PARAMETER WRN HIGH to GPO output data valid
UNIT ns
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
AC ELECTRICAL CHARACTERISTICS (Continued)
CSN (CEN)
RDN tGIVRDL tRDLGII GPI1N AND/OR GPI2N
SD00242
Figure 8. Input Port Timing SYMBOL tGIVRDL tRDLGII GPI input valid to RDN LOW RDN LOW to GPI input invalid PARAMETER LIMITS Min 20 40 Max - - UNIT ns ns
*Pull-up resistor is not required when using CMOS levels TTL
DRIVING FROM EXTERNAL SOURCE VCC 470
*
X1 X2 /2 CL1 CL2 X2 CP2 CP1 = 7-12pF CP2 = 12-17pF SC26C562 X1 CP1 50-150k TO CDUSCC CIRCUITS
X2 OPEN WHEN X1 IS DRIVEN tCLHCLL tCCHCCL tRCHRCL tTCHTCL X1/CLK CTCLK RxC TxC
tCLLCLH tCCLCCH tRCLRCH tTCLTCH
NOTE: CL1 AND CL2 VALUES DEPEND ON CRYSTAL MANUFACTURER'S REQUIREMENTS, AND SHOULD INCLUDE CP1 AND CP2
SD00243
Figure 9. Clock Timing SYMBOL tCLHCLL tCLLCLH tCCHCCL tCCLCCH tRCHRCL tRCLRCH tTCHTCL tTCLTCH fCL fCC fRC fTC
fRTC
PARAMETER X1/CLK HIGH to LOW time X1/CLK LOW to HIGH time C/T CLK HIGH to LOW time C/T CLK LOW to HIGH time RxC HIGH to LOW time RxC LOW to HIGH time TxC HIGH to LOW time TxC LOW to HIGH time X1/CLK frequency11 C/T CLK frequency RxC frequency (16X or 1X @ 50% duty cycle) TxC frequency (16X or 1X @ 50% duty cycle) Tx/Rx frequency for FM/Manchester encoding
LIMITS Min 25 25 45 45 50 50 50 50 0 0 0 0 - Typ - - - - - - - - 14.7456 - - - - Max - - - - - - - - 16.0 10 10 10 5
UNIT ns ns ns ns ns ns ns ns MHz MHz MHz MHz MHz
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
AC ELECTRICAL CHARACTERISTICS (Continued)
1 BIT TIME (1 OR 16 CLOCKS) TxC (INPUT) tCILTXV TxD TxD tCOLTXV TxC (1X OUTPUT) tCOLTXV TxC (1X OUTPUT) tCOLTXV TxC (INPUT) tCILTXV tCILTXV
a. Transmit Timing NRZ
b. Transmit Timing FM0/1, Manchester Encoding
SD00244
Figure 10. LIMITS Min - - - - Max 120 120 20 30
SYMBOL tCILTXV tCOLTXV*
PARAMETER TxC input LOW (1X) to TxD output TxC input LOW (16X) to TxD output TxC output LOW to TxD output9 (NRZ, NRZI) FM, MAN
UNIT ns ns ns ns
*Characterized with no loads on TxD and TxC outputs. Tester load is approximately 50 pF.
tRCHSOL RXC (INPUT) tSILRCH SYNIN tRCHSIH tRCHRXI tRXVRCH tRXVRCH
SYNOUTN
RXC (1X) INPUT tRXVRCH RxD tRCHRXI
RxD tRCHRXI
a. Receive Timing NRZ
b. Receive Timing FM0/1, Manchester Encoding
SD00245
Figure 11. LIMITS Min 20 30 20 30 50 20 - Max - - - - - - 100
SYMBOL tRXVRCH
PARAMETER RxD data valid to RxC HIGH: For NRZ data For NRZI, Manchester, FM0, FM1 data RxC HIGH to RxD data invalid: For NRZ data For NRZI, Manchester, FM0, FM1 data SYNIN LOW to RxC HIGH RxC HIGH to SYNIN HIGH RxC HIGH to SYNOUT LOW
UNIT
ns ns ns ns ns ns ns
tRCHRXI
tSILRCH tRCHSIH tRCHSOL
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
AC ELECTRICAL CHARACTERISTICS (Continued)
tWRHEOZ EOPN (OUTPUT)
tWRLEOL
RTxDRQN OR TxDRQN
CSN (CEN)
tWRLTRH A WRN
D7-D0 tEILWRH EOPN (INPUT) tWRHEIH
A
The TxFIFO is addressed during this write cycle.
SD00246
Figure 12. Transmit Dual Address DMA Timing LIMITS Min - - - 30 25 Max 100 100 60 - -
SYMBOL tWRLTRH tWRLEOL tWRHEOZ tEILWRH tWRHEIH
PARAMETER WRN LOW to Tx DMA REQN HIGH WRN LOW to EOPN output LOW WRN HIGH to EOPN output high-impedance EOPN input LOW to WRN HIGH WRN HIGH to EOPN input HIGH
UNIT ns ns ns ns ns
2006 Aug 10
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
AC ELECTRICAL CHARACTERISTICS (Continued)
RTxDRQN
tRDLRRH
CEN
RDN
A
D7-D0
tRDLEOL EOPN (OUTPUT)
tRDHEOZ
A
The RxFIFO is addressed during this read cycle.
SD00247
Figure 13. Receive Dual Address DMA Timing LIMITS Min - - - Max 100 100 60
SYMBOL tRDLRRH tRDLEOL tRDHEOZ
PARAMETER RDN LOW to Rx DMA REQN HIGH RDN LOW to EOPN output LOW RDN HIGH to EOPN output high-impedance
UNIT ns ns ns
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
AC ELECTRICAL CHARACTERISTICS (Continued)
TxRQN tTAHTAL TxDAKN tTALTAH tTALTRH
WRN A A
MEMRN B B tEILTAH EOPN (INPUT) tWDVTAH tTAHWDI tTAHEIH
D7-D0 tTAHEOF tTALEOL EOPN (OUTPUT)
NOTES: A Ignored by the CDUSCC since CEN is not asserted, but it can be used externally to qualify TxDAKN. B Memory read signal; not seen by CDUSCC.
SD00248
Figure 14. DMA-Transmit Single Address Mode
SYMBOL tTAHTAL tTALTAH tTALTRH tWDVTAH tTAHWDI tTALEOL tTAHEOF tEILTAH tTAHEIH
PARAMETER Transmit DMA ACKN HIGH to LOW time Transmit DMA ACKN LOW to HIGH time Tx DMA ACKN LOW to Tx DMA REQN HIGH Write data valid to Tx DMA ACKN HIGH Tx DMA ACKN HIGH to write data invalid Tx DMA ACKN LOW to EOPN output LOW Tx DMA ACKN HIGH to EOPN output float EOPN input LOW to Tx DMA ACKN HIGH Tx DMA ACKN HIGH to EOPN input HIGH
LIMITS Min 30 100 - 40 10 - - 30 25 Max - - 100 - - 80 60 - -
UNIT ns ns ns ns ns ns ns ns ns
2006 Aug 10
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
AC ELECTRICAL CHARACTERISTICS (Continued)
RxDRQN tRAHRAL RxDAKN tRALRAH tRALRRH
RDN A A
MEMWN B tRALEOL EOPN (OUTPUT) tRALDDV tRAHDDI B tRAHEOF
D7-D0 tRAHDDF NOTES: A Ignored by the CDUSCC bit; it can be used to qualify RxDAKN. B Memory read signal; not seen by CDUSCC.
SD00249
Figure 15. DMA-Receive Single Address Mode LIMITS Min Receive DMA ACKN HIGH to LOW time Receive DMA ACKN LOW to HIGH time Rx DMA ACKN LOW to Rx DMA REQN HIGH Rx DMA ACKN LOW to EOPN output LOW Rx DMA ACKN HIGH to EOPN output float Rx DMA ACKN LOW to read data valid Rx DMA ACKN HIGH to read data invalid Rx DMA ACKN HIGH to data bus float 30 130 - - - - 5 - Max - - 100 100 60 130 - 60
SYMBOL tRAHRAL tRALRAH tRALRRH tRALEOL tRAHEOF tRALDDV tRAHDDI tRAHDDF
UNIT ns ns ns ns ns ns ns ns
2006 Aug 10
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Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
AC ELECTRICAL CHARACTERISTICS (Continued)
RDN/WRN tRWHIRH IRQN VM VOL +0.2V VOL
SD00218
Figure 16. Interrupt Timing SYMBOL PARAMETER RDN/WRN HIGH to IRQN HIGH for: Read RxFIFO (RxRDY interrupt) Write TxFIFO (TxRDY interrupt) Write RSR (Rx condition interrupt) Write TRSR (Rx/Tx interrupt) Write ICTSR (counter/timer interrupt) Write TRMSR (Tx Path, Patt. Det.) LIMITS Min - - - - - - Max 90 90 90 90 90 90 UNIT
tRWHIRH
ns ns ns ns ns ns
X1/CLK
WRN
COMMAND VALID
SD00219
Figure 17. Command Timing
RxC
1
2
3
4
5
6
7
8
RxD
LCN
a. Loop Control Output Assertion
RxC
1
2
3
4
5
6
7
8
9
RxD
LCN
b. Loop Control Output Negation
SD00220
Figure 18. Relationship Between Received Data and the Loop Control Output
2006 Aug 10
18
Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
50 0 C 40 25 C
50
40
30 ICC 20 70 C ICC
30
20
10
10
0 4 4.5 5 VCC 5.5 6
0 4 6 8 10 Tx/Rx Clk and X1 Frequency
Test Condition: Tx/Rx and X1 Frequency @ 10 MHz
Test Condition: VCC = 5 V at 25 C
SD00250
Figure 19.
2.7 k IRQN 50 pF VDD
TRxC RTxC 50 pF
820 RDYN 150 pF +5.0 V
1 k EOPN 50 pF VDD
ALL OTHER OUTPUTS 150 pF
710 +5.0 V
NOTE: All CL includes 50 pF stray capacitance, i.e., CL = 150 pF = 100 pF discrete +50 pF stray.
SD00251
Figure 20. Test Conditions for Outputs
2006 Aug 10
19
Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
PLCC52: plastic leaded chip carrier; 52 leads
SOT238-2
2006 Aug 10
20
Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
REVISION HISTORY
Rev _4 Date 20060810 Description Product data sheet (9397 750 14948). Supersedes data of 2004 Mar 29 (9397 750 13072).
* Ordering information: changed Version for PLCC52 from SOT238-3 to SOT238-2 * Changed package outline drawing from SOT238-3 to SOT238-2.
_3 _2 _1 20040329 19980904 19950501 Product data (9397 750 13072). Supersedes Product specification of 1998 Sep 04 (9397 750 04355). Product specification (9397 750 04355). ECN 853-1663 19973 of 04 September 1998. Supersedes data of 1995 May 01.
Modifications:
2006 Aug 10
21
Philips Semiconductors
Product data sheet
CMOS dual universal serial communications controller (CDUSCC)
SC26C562
Legal Information
Data sheet status
Document status [1][2]
Objective [short] data sheet Preliminary [short] data sheet Product [short] data sheet
Product status[3]
Development Qualification Production
Definition
This document contains data from the objective specification for product development. This document contains data from the preliminary specification. This document contains the product specification.
[1] Please consult the most recently issued document before initiating or completing a design. [2] The term `short data sheet' is explained in section "Definitions". [3] The product status of device(s) described in this document may have changed since this data sheet was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.semiconductors.philips.com.
Definitions
Draft -- The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. Philips Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet -- A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local Philips Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail.
environmental damage. Philips Semiconductors accepts no liability for inclusion and/or use of Philips Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. Applications -- Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Limiting values -- Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of sale -- Philips Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.semiconductors.philips.com/profile/terms, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by Philips Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. No offer to sell or license -- Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights.
Disclaimers
General -- Information in this document is believed to be accurate and reliable. However, Philips Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Right to make changes -- Philips Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use -- Philips Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of a Philips Semiconductors product can reasonably be expected to result in personal injury, death or severe property or
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Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners.
Contact information
For additional information please visit: http://www.semiconductors.philips.com For sales office addresses, send an e-mail to: sales.addresses@www.semiconductors.philips.com.
Please be aware that important notices concerning this document and the product(s) described herein, have been included in section `Legal information'.
(c) Koninklijke Philips Electronics N.V. 2006.
All rights reserved.
For more information, please visit http://www.semiconductors.philips.com. For sales office addresses, email to: sales.addresses@www.semiconductors.philips.com. Date of release: 20060810 Document identifier: SC26C562_4
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