RM7935/RM7965
PMC-2030350, Issue 4
Copyright PMC-Sierra, Inc. 20032006
All rights reserved. Proprietary and Confidential to PMC-Sierra, Inc. and for its customers' internal use.
64-bit Microprocessors with Integrated L2 Cache and EJTAG
PRODUCT HIGHLIGHTS
New high performance MIPS64-compatible Instruction Set
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 5-
cycle 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.
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.
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
Cache Test
Mode
64-bit Integer Unit
Dual-Issue Superscalar
Integer Multiplier
64-bit Floating Point Unit
Double/Single IEEE-754
Instruction Dispatch
8K Entry Branch History Tbl
Interface Unit
Secondary Cache
256 KB, 4-way
Line Lockable
System Control
Memory Manager
64-Entry, Dual Page
Data Cache
16 KB, 4-way
Line Lockable
Instruction Cache
16 KB, 4-way
Line Lockable
E9000 Core
SysAD
System Interface
Interrupt
Interface
EJTAG/JTAG
Controller
On-Chip Debug
Branch Trace Buffer
PLL & Clock
Released
Product Brief
RM7935/RM7965 64-bit Microprocessors with Integrated L2 Cache and EJTAG
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
PMC-2030350 (R4) Copyright PMC-Sierra, Inc. 20032006. 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.
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
PACKAGING
RM7935 is available in a 128-pin enhanced exposed pad (eePad)
package (20 x 20 mm), pin-compatible with the RM5231A and
RM7035C exposed pad products.
RM7965 package options:
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.
DEVELOPMENT TOOLS
OPERATING SYSTEMS
Linux
VxWorks
EJTAG EMULATORS
Wind River
Corelis
EVALUATION BOARDS
Momentum Computer
Marvell Semiconductor
COMPANION CHIPS
Marvell Semiconductor: (MV-64340, GT-64240)
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
TYPICAL APPLICATIONS
32-bit
Boot-Flash
Flash
Disk
Watchdog,
I
2
C & Control
Registers
Data
Buffer
ITE
IT-8172G
or
ASIC
SDRAM
32-Bit
100 MHz
32-Bit
100 MHz
RM7935
PCI-to-PCI
Bridge
GbE MAC
GbE MAC
PCI Bus
32-bit @ 33 MHz
32-bit
32-bit
32-bit
8-bit
Dual UART
64-bit
Boot-Flash
Flash
Disk
Watchdog,
I
2
C & Control
Registers
Data
Buffer
Marvell
MV-64340
or
ASIC
DDR
SDRAM
64-Bit
183 MHz
64-Bit
200 MHz
RM7965
PCI-to-PCI
Bridge
GbE MAC
GbE MAC
PCI-(X) Bus
2x32/64-bit @ 66 MHz
32-bit
32-bit
2x64-bit
8-bit
Dual UART
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