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revisions no version approved the information disclosed herein was originated by and is the property of mazet. mazet reserves all patent, proprietary, design, use, sales, manufacturing an repr oduction rights thereto. product names used in this publication ar e for identification purposes only and may be trademark of their respective companies. 1 1.0 2000-09-18 approvals date mazet gmbh compiled: 2000-09-18 checked: 2000-09-18 status: valid mazet gmbh sales g?schwitzer stra?e 32 07745 jena / germany phone: +49 3641 2809-0 fax: +49 3641 2809-12 e-mail: sales@mazet.de url: http://www.mazet.de released: 2000-09-18 doc. no: db-99-064e page 1 of 11 data sheet MMI200-PC/104 encoder interface board ssi square wave incremental signals (bi-directional interface for absolute encoders according to the specification of dr. j. heidenhain gmbh) (unidirectional interface for absolute encoders) (ttl-interface for incremental encoders with a 32 bit encoder counter) table of contents 1 general description 2 2isa interface 3 3 register description 4 3.1 on-board command register 4 3.2 optical coupler input register 4 3.3 on-board interrupt enable register 4 3.4 mmi4832 registers 5 4 optical coupler 6 4.1 optical coupler inputs 6 4.2 optical coupler outputs 7 5 measurement system interface 8 6board design mechanics 10 7 electrical specifications 10 7.1 absolute maximum ratings 10 7.2 recommended operating conditions 10 7.3 electrical characteristics 11 .com .com .com 4 .com u datasheet
revisions no version approved 1 1.0 2000-09-18 1 the information in this publicat ion is believed to be accurate in all respects at the time of publication. mazet reserves the right to make changes in its products without notice in order to improve design or performance characteristics. doc. no: db-99-064e page 2 of 11 data sheet MMI200-PC/104 1 general description the mip200-pc/104 board comprises two measurement channels for data acquisition. it is used as an interface board for endat, ssi or incremental encoders. a timer is available in all operational modes (i.e. endat, ssi, incremental). the timer can be used to generate a hardware strobe for equidistant data sa mpling by defining the break interval. the system is clocked at 33.00 mhz, for endat mode preferably at 24.00 mhz. ) the power supply for the encoders (5/12 v, ground) is supplied on sockets d-sub9 / d-sub15. ) the maximum available current is 300 ma. figure 1 shows the mip200-pc/104 board's block diagram connected to an endat encoder on channel x1 and to an incremental encoder on channel x2. 74 als 245 d0 ...d15 mmi4832 data_dv sn75176b d0 d15 /ir6 /rd /cs /w r tclk sd0 ...sd15 isplsi2064 2 x wr_m /rs cs_2 cs_1 rd_m cs_1 rd_m res_m jp iow\, ior\, resdrv clk /ir7 mot / str iochrdy cmd wr_m : sa0 ...sa15 endat - encoder clk+ clk - quartz- oscillator /ir61 /ir71 /str1 iocs16 de de /re d sn75176b de /re d +5v d+ d- data_rc r < > cmd cmd cha chb chc chd gnd gnd > < < > > > > < < +5v mmi4832 data_dv d0 d15 /ir6 /rd /cs /w r tclk /rs clk /ir7 mot /str cmd : de data_rc cha chb chc chd gnd gnd < < d0 ...d15 cs_2 rd_m res_m wr_m cmd res_m 40mhz 40mhz 40mhz > gnd < sn75176b de /re d sn75176b de /re d +5v r > > p c / 1 0 4 clk+ clk - d+ d- > > > > < < < x2 uwb_in-modul x1 clk+ clk - d+ d- > > > > < < cha chb x 3, x4 optical coupler > < x9 < > > 4 / 4 / < uwb_in-modul optical coupler < register < > incremental - encoder - register cha chb chc figure 1: block diagram MMI200-PC/104 ) default configuration 33 mhz ) default configuration 5v power supply for encoder .com .com .com .com 4 .com u datasheet
revisions no version approved 1 1.0 2000-09-18 1 the information in this publicat ion is believed to be accurate in all respects at the time of publication. mazet reserves the right to make changes in its products without notice in order to improve design or performance characteristics. doc. no: db-99-064e page 3 of 11 data sheet MMI200-PC/104 2 isa interface the board supports only 16 bit accesses (to even addresses). board addresses the board address setting is done by switches s1.1 .. s1.3 according to table 1. s1.3 s1.2 s1.1 base address off off off 30x off off on 31x off on on 33x on off off 34x on off on 35x on on off 36x table 1: board address register addresses the available addressable registers are divided into on-board registers and measurement interface circuit mmi4832 registers. on-board registers are interrupt enable register, command register, optical coupler register. they are directly accessible by reading from or writing to the appropriate address. mmi4832 registers are hidden, meaning that they can be accessed by first writing the address and then reading or writing the actual data. offset address function 0x0 (read/write) data access mmi4832 (measurement interface ic) channel 1 0x2 (write only) address selection mmi4832 (measurement interface ic) channel 1 0x4 (read/write) data access mmi4832 (measurement interface ic) channel 2 0x6 (write only) on-board interrupt enable register 0x8 (write only) software reset 0xa (write only) address selection mmi4832 (measurement interface ic) channel 1 0xc (write only) on-board command register (analog interpolator, optical coupler outputs) 0xc (read only) optical coupler input register others reserved table 2: offset addresses .com .com .com .com 4 .com u datasheet
revisions no version approved 1 1.0 2000-09-18 1 the information in this publicat ion is believed to be accurate in all respects at the time of publication. mazet reserves the right to make changes in its products without notice in order to improve design or performance characteristics. doc. no: db-99-064e page 4 of 11 data sheet MMI200-PC/104 3 register description 3.1 on-board command register this register holds the settings of the analog interpolation coefficient and the control of four optical coupler outputs. analog interpolation coefficient optical coupler outputs d(7) d(6) d(5) d(4) d(3) o_opto4 d(2) o_opto3 d(1) o_opto2 d(0) o_opto1 the (optional) mip200's interpolation coefficient is set and modified by bits d(7) to d(4). according to table 3 every channel has its own interpolation coefficient. refer to chap. 4 for a detailed description of the optical coupler signals. analog interpolation coefficient d(7) channel 2 d(6) channel 2 d(5) channel 1 d(4) channel 1 50000 100101 251010 501111 table 3: selecting the interp olation coefficient of mip200 3.2 optical coupler input register this register holds the current status of the two coupler inputs i_opto5 and i_opto6. the other coupler inputs can be polled via the mmi4832 internal status register. d(3) d(2) --- o_opto6 o_opto5 3.3 on-board interrupt enable register two interrupt levels can be selected by writing this register (1=enable, 0=disable) as a board interrupt. valid interrupts are irq10 and 11. d(2) d(1) d(0) --- irq11 irq10 .com .com .com .com 4 .com u datasheet
revisions no version approved 1 1.0 2000-09-18 1 the information in this publicat ion is believed to be accurate in all respects at the time of publication. mazet reserves the right to make changes in its products without notice in order to improve design or performance characteristics. doc. no: db-99-064e page 5 of 11 data sheet MMI200-PC/104 3.4 mmi4832 registers internal mmi4832 registers are accessed by first writing the register address to the offset address 0x2 (channel 1) or 0xa (channel 2). after that only th e internal register can be read or written to via the offset address 0x0 (channel 1) or 0x4 (channel 2). table 4 contains the bit mapping of mmi4832's internal address register. d7 d6 d5 d4 d3 d2 d1 d0 --- m16 ainc address a4 address a3 address a2 address a1 address a0 table 4: internal address register m16 = 1 16 bit accesses (this board only supports 16 bit accesses) ainc = 1 autoincrement addressing mode. the base addre ss of an internal register is written to a(4:2). the access is repeated n times, where n is the number of words. a(4:2) /wr-, /rd- access register write 16 bit port read 16 bit port transmit register write transmit register read transmit register 0 1 write d(0:15) read d(0:15) 2 write d(16:31) read d(16:31) 2 2 receive register latching the value of the serial- parallel converters read receive register, strobe-rg 11 into the receive register read d(0:15) 2 --- read d(16:31) 3 --- read d(32:47) 1 1 - 3 ** 2-- - --- --- reference / offset register write ref./offset register read receive register + offset 3 1 write d(0:15) read d(0:15) 2 write d(16:31) read d(16:31) 2 2 control register write control register read control register 4 1 write d(0:15) read d(0:15) 2 write d(16:31) read d(16:31) 2 2 status register software strobe read status register with reset 5 1 --- read d(0:7) 1 1 interrupt mask register write interrupt mask register read interrupt mask register 6 1 write d(0:7) read d(0:7) 1 1 timer register write timer register read status register without reset 7 1 write d(0:15) read d(0:7) 1 1 table 5: parallel port mode "intel": autoincrement (mot = "0", ainc = "1") ** the number of necessary accesses is determined by the data width set in control register (bits 24:29) .com .com .com .com 4 .com u datasheet
revisions no version approved 1 1.0 2000-09-18 1 the information in this publicat ion is believed to be accurate in all respects at the time of publication. mazet reserves the right to make changes in its products without notice in order to improve design or performance characteristics. doc. no: db-99-064e page 6 of 11 data sheet MMI200-PC/104 4 optical coupler the board contains 10 optical coupler (2x hcpl0601 for str1, str2 and 2x 4 pc3q66q) to electrically separate signal levels of external devices. the optical coupler can be controlled via registers, i.e. settings can be written to and the st atus read from via regist er access. four optical couplers (outputs, write only) can drive external signals. the other six couplers can receive control signals of external devices (e.g. programmable logic controllers). a "1" in the on-board command register results in closing the circuit o_optox with x = 1..4. the coupler inputs are high-active. 4.1 optical coupler inputs the six inputs at the x9 connector are wired to the optical coupler via a serial resistor of approx. 3 k . both strobe inputs str1 and str2 (pins 9, 10) have a common ground (gnd1 ? pin 11). the inputs ir71, ir72, i_opto5 and i_opto6 have a common ground, too (gdn2 ? pin 17). a 24 v, 7 ma signal is required to drive the inputs. the maximum rate at inputs str1, str2 should not exceed 10 mhz. the maximum rate at the other input amounts is 100 khz. a special hw configuration is supplied when 5 v input signal voltage is required. figure 2 shows the optical coupler input circuit. external signals + 24 v signal * (e.g. from programmable logic controller) optical coupler inputs hcpl060 1 9 10 13 14 15 16 11 6 x 2,0k 17 str1 str2 ir71 ir72 i_opto5 i_opto6 gnd1 gnd2 pc3q66q * hw confi g uration for 24 v si g nals default figure 2: optical coupler input circuit .com .com .com .com 4 .com u datasheet
revisions no version approved 1 1.0 2000-09-18 1 the information in this publicat ion is believed to be accurate in all respects at the time of publication. mazet reserves the right to make changes in its products without notice in order to improve design or performance characteristics. doc. no: db-99-064e page 7 of 11 data sheet MMI200-PC/104 4.2 optical coupler outputs the four outputs have a common ground gnd3 (pin 25) and a common power supply vcc3 (pin 24). the gnd3 has to be connected to 0v = ground, the vcc3 to 24 v. the coupler outputs o_optox with x=1..4 (pins 19..22) deliver 24 v that can be used directly to control machines. the maximum output rate is 5 khz. figure 3 shows the optical coupler output circuit. external signals 24 19 20 21 22 25 optical coupler outputs 4 x 12k pc3q66q vn330sp + 24v o_opto1 o_opto2 o_opto3 o_opto4 gnd3 figure 3: optical coupler output circuit .com .com .com .com 4 .com u datasheet
revisions no version approved 1 1.0 2000-09-18 1 the information in this publicat ion is believed to be accurate in all respects at the time of publication. mazet reserves the right to make changes in its products without notice in order to improve design or performance characteristics. doc. no: db-99-064e page 8 of 11 data sheet MMI200-PC/104 5 measurement system interface d-sub9 or d-sub15 sockets are alternatively avai lable to interface to a measurement system. they are wired by a ribbon cable to the 16-pin connectors placed on the board. signal assignments are described in table 6. d-sub15 socket d-sub9 socket 16-pin connector x1/2 signal name 1 6 2 a + (incremental signals) 22 3 gnd 3 8 6 b + (incremental signals) 47 4 + 5 v 5 --- 10 data + 6 --- --- inner shield 75 9 c ? (ref) 8 --- 12 clock 9 1 1 a ? (incremental signals) 10 --- 15, 16 gnd 11 3 5 b ? (incremental signals) 12 --- 14 + 5 v 13 --- 11 data - 14 9 8 c + (ref) 15 --- 13 /clock table 6: measurement system pin assignment the connector x9 supports additional signals as described in table 7. pin number 26 pin connector x9 1 /null1 external reset channel 1 pull-up 2 /null2 external reset channel 2 pull-up 3chd12 nd reference impulse channel 1 pull-up 4chd22 nd reference impulse channel 2 pull-up 5 /ir61 free input for interrupt request channel 1 pull-up 6 /ir62 free input for interrupt request channel 2 pull-up 7 vcc0 vcc0 ? output voltage (for pin 1-6) 5 v 8 gnd gnd gnd (board) 9 str1 optical coupler input 1 (external strobe channel 1) 10 str2 optical coupler input 2 (external strobe channel 2) 11 gnd1 ground1 - input for optical coupler input(1-2) --- 12 --- --- --- 13 ir71 optical coupler input 3 for interrupt request channel 1 14 ir72 optical coupler input 4 for interrupt request channel 2 15 i_opto5 optical coupler input 5 .com .com .com .com 4 .com u datasheet
revisions no version approved 1 1.0 2000-09-18 1 the information in this publicat ion is believed to be accurate in all respects at the time of publication. mazet reserves the right to make changes in its products without notice in order to improve design or performance characteristics. doc. no: db-99-064e page 9 of 11 data sheet MMI200-PC/104 pin number 26 pin connector x9 16 i_opto6 optical coupler input 6 17 gnd2 ground2 - input for optical coupler input(3-6) 18 --- --- 19 o_opto1 optical coupler output 1 20 o_opto2 optical coupler output 2 21 o_opto3 optical coupler output 3 22 o_opto4 optical coupler output 4 23 --- 24 vcc3 vcc3 ? input for optical coupler output(1-4) 24v 25 gnd3 ground3 for optical coupler output(1-4) 26 gnd ground (board) gnd (board) table 7: pin assignment of connector x9 the setting for the power supply voltage is done by a jumper on x11. jumper 3 2 15 v jumper 3 2 1 12 v .com .com .com .com 4 .com u datasheet
revisions no version approved 1 1.0 2000-09-18 1 the information in this publicat ion is believed to be accurate in all respects at the time of publication. mazet reserves the right to make changes in its products without notice in order to improve design or performance characteristics. doc. no: db-99-064e page 10 of 11 data sheet MMI200-PC/104 6 board design mechanics 7 electrical specifications 7.1 absolute maximum ratings characteristics symbol min. max. unit remarks dc supply voltage 7 1 v operating temperature t a 0 70 2 c storage temperature t stg -55 125 c table 8: absolute maximum ratings 1 the maximum supply voltage is not allowed for continuous operation 2 guaranteed value, tolerances to higher values possible 7.2 recommended oper ating conditions characteristics (nominal value: ucc=5v) symbol min. max. unit remarks dc supply voltage v dd 4,75 5,25 v operating temperature t amb 070c table 9: recommended operating conditions .com .com .com .com 4 .com u datasheet
revisions no version approved 1 1.0 2000-09-18 1 the information in this publicat ion is believed to be accurate in all respects at the time of publication. mazet reserves the right to make changes in its products without notice in order to improve design or performance characteristics. doc. no: db-99-064e page 11 of 11 data sheet MMI200-PC/104 7.3 electrical characteristics characteristics (nominal value: ucc=5v) symbol min. typ max. unit bemerkung system clock frequency f clk --- 33 --- mhz preferable for incremental systems f clk --- 24 --- mhz preferable for endat supply current --- --- 400 ma input voltage optical coupler inputs v i_opto 10 24 30 v i(typ)= 7 ma input current optical coupler inputs i i_opto 4 7 --- ma v i_opto = 24v rising time (str1, str2) t a i_opto --- --- 300 ns v i_opto = 24v, i(typ)= 10 ma rising time (ir71,ir72,i_opto5,i_opto 6) t a i_opto --- --- 30 s v i_opto = 24v, i(typ)= 10 ma output voltage optical coupler outputs v o_optox 10 24 30 v i(typ)= 30 ma output current optical coupler outputs i o_optox --- 30 100 ma v o_opto = 24v rising time t a o_optox --- --- 100 s v i_opto = 24v table 10: electrical characteristics absolute ratings: it will lead to irreversible damage of the board when exceeded. recommended operating conditions: under these conditions the functions de scribed in this manual are fulfilled. characteristics: the described features are guaranteed on operating conditions of the board. reference: - data sheet mmi4832 (db-99-031, v1.3) for more information please contact: mazet gmbh sales office: dr. winfried mahler g?schwitzer stra?e 32 07745 jena germany phone: +49 3641 2809-0 fax: +49 3641 2809-12 e-mail: mahler@mazet.de url: http://www.mazet.de .com .com .com 4 .com u datasheet

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