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RM7935/RM7965
64-bit Microprocessors with Integrated L2 Cache and EJTAG
Released Product Brief PRODUCT HIGHLIGHTS
* New high performance MIPS64-compatible Instruction Set * High-performance system interface:
* * * * *
32-bit multiplexed address/data (SysAD) bus with RM7935. 64-bit SysAD with RM7965. Multiple outstanding reads with out-of-order return. 1600 Mbyte/s peak throughput. 200 MHz maximum frequency using HSTL signaling on the SysAD bus. SysAD bus supports 1.5 V, 2.5 V, 3.3 V I/O logic. Processor clock multipliers 2, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 10, 11, 12, 13, 14, 15, 16, 17.
Architecture with integrated L2 cache and EJTAG:
* * * * * *
668, 750, 835 and 900 MHz operating frequency. 1890 Dhrystone 2.1 MIPS @ 900 MHz. Dual-issue superscalar 7-stage pipeline. 16 Kbyte, 4-way set associative L1 Instruction cache. 16 Kbyte, 4-way set associative L1 Data cache. 256 Kbyte, 4-way set associative L2 cache with industry best 5cycle access latency. Fast Packet Cache to assists processing of packet data. 8K entry branch prediction table. Fully associative 64-entry TLB with dual pages. High-performance Floating Point Unit (IEEE 754). Fixed-point DSP instructions such as Multiply/Add, Multiply/Subtract, and 3 Operand Multiply.
* *
* * * * *
* Integrated on-chip EJTAG capability. * A 64-entry dynamic Trace Buffer for use in real-time trace and
debug.
* Two 32-bit virtually-addressed Watch registers. * Integrated performance counters:
* *
2 independent 32-bit counters. Counts over 30 processor events including miss predicted branches. Enables full characterization and analysis of application software.
*
BLOCK DIAGRAM
On-Chip Debug 64-bit Integer Unit Dual-Issue Superscalar Integer Multiplier Branch Trace Buffer 64-bit Floating Point Unit Double/Single IEEE-754
Instruction Dispatch
8K Entry Branch History Tbl
Instruction Cache 16 KB, 4-way Line Lockable
Memory Manager 64-Entry, Dual Page
Data Cache 16 KB, 4-way Line Lockable
Interface Unit
System Control
Secondary Cache 256 KB, 4-way Line Lockable E9000 Core
SysAD System Interface
Interrupt Interface
EJTAG/JTAG Controller
Cache Test Mode
PLL & Clock
PMC-2030350, Issue 4 (c) Copyright PMC-Sierra, Inc. 2003-2006 All rights reserved. Proprietary and Confidential to PMC-Sierra, Inc. and for its customers' internal use.
RM7935/RM7965 64-bit Microprocessors with Integrated L2 Cache and EJTAG
PACKAGING
* RM7935 is available in a 128-pin enhanced exposed pad (eePad)
EVALUATION BOARDS
* Momentum Computer * Marvell Semiconductor
package (20 x 20 mm), pin-compatible with the RM5231A and RM7035C exposed pad products.
* RM7965 package options:
*
COMPANION CHIPS
* Marvell Semiconductor: (MV-64340, GT-64240)
256-pin TBGA package, 27 x 27 mm, pin compatible with RM7065A and RM7065C TBGA products. 216-pin enhanced exposed pad (eePad) package, 24 x 24 mm, pin compatible with the RM5261A and RM7965C exposed pad products.
*
APPLICATIONS
* Voice Gateways * Multi-Service Access Platforms * DSLAMs/Access Concentrators * Remote Access Switches * Web Switches * Layer 3 Switches * Backbone Switches/Routers * RAIDs * Set Top Boxes * Networked Printers * Cellular Base Stations
DEVELOPMENT TOOLS
OPERATING SYSTEMS
* Linux * VxWorks
EJTAG EMULATORS
* Wind River * Corelis
TYPICAL APPLICATIONS
RM7935
RM7965
32-Bit 100 MHz ITE IT-8172G or ASIC PCI Bus 32-bit @ 33 MHz 32-bit PCI-to-PCI Bridge 32-bit 32-bit 32-bit 32-Bit 100 MHz SDRAM PCI-(X) Bus 2x32/64-bit @ 66 MHz 64-bit Boot-Flash Flash Disk Watchdog, I2C & Control Registers Dual UART PCI-to-PCI Bridge GbE MAC 32-bit 32-bit
64-Bit 200 MHz Marvell MV-64340 or ASIC 2x64-bit 64-Bit 183 MHz
DDR SDRAM
Data Buffer 8-bit
Data Buffer 8-bit Boot-Flash Flash Disk Watchdog, I2C & Control Registers Dual UART
GbE MAC
GbE MAC
GbE MAC
Corporate Head Office: PMC-Sierra, Inc. Mission Towers One 3975 Freedom Circle Santa Clara, CA, 95054, U.S.A. Tel: 1.408.239.8000 Fax: 1.408. 492.1157
Operations Head Office: PMC-Sierra, Inc. 100-2700 Production Way Burnaby, BC V5A 4X1 Canada Tel: 1.604.415.6000 Fax: 1.604.415.6200
PMC-2030350 (R4) (c) Copyright PMC-Sierra, Inc. 2003-2006. All rights reserved. For a complete list of PMC-Sierra's trademarks , visit www.pmc-sierra.com/legal/. Other product and company names mentioned herein may be the trademarks of their respective owners. For corporate information, send email to: info@pmc-sierra.com. All product documentation is available on our web site at: www.pmc-sierra.com.

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