®
COMPACT PCI SMART I/O 64 CARD
Integrated Device Technology, Inc.
PRELIMINARY
INFORMATION
IDT7M9535
IDT7M9536
IDT7M9537
FEATURES:
• High performance IDT Common-bus CPU Card (C3),
– IDT MIPS processors RV4650, RV4700 or
RV5000
– Configurable with up to 1MB of L2 cache
• 6U size CompactPCI peripheral board
• Two 64-bit PCI Mezzanine Card (PMC) slots on board to
support a wide range of PCI based I/O devices
• Digital 21154 PCI to PCI Bridge
– Separates Secondary (on board) PCI bus traffic
from backplane PCI bus traffic
– 64-bit backplane and secondary PCI buses
• Galileo GT64120 single chip PCI system controller
– Up to 75MHz CPU bus frequency
• Two 144 Pin SDRAM SODIMM sockets for DRAM
– SDRAM
– 64 bit DRAM data path
– 8Mbyte to 128Mbyte of DRAM supported
• Flash
– 32 bit Width
– 4Mbyte standard configuration
– Consult factory for 8 Mbyte option
• Boot Prom
– 8-bit Width
– Up to 512KB
• Dual serial interface ports
– 16552D (16550A compatible)
– 10 pin (2x5) headers
• Two General Purpose Registers
• On Board Reset Generation
DESCRIPTION:
The IDT7M9535/36/37 is a standard 6U CompactPCI Card
which consists of an IDTC3 CPU Card based subsystem that
can be used as an I/O processor in a CompactPCI based
system.
It is designed to be plugged into any CPCI backplane
peripheral slot that can accept a standard 6U size card. The
card contains all of the features required of a typical CPU
subsystem for embedded I/O processing applications.
FUNCTIONAL BLOCK DIAGRAM
DMA Device Bus
Bank 2
Bank 1
SODIMM
64-bit SD
RAM
8-64 Mbyte s
CPU Bus
EPROM
(8-bit)
Flash
(32-bit)
Serial
Connectors
System
Glue
Logic
IDT C3 CPU
Card
SCC
(16552)
GT-64120
Wat ch
Dog Timer
Secondary PCI Bus ( PCI64)
PMC I/ O Card
Connector
( PCI64)
PMC I/ O Card
Connecto r
(PCI64)
PCI-PCI Bridge
(21 154 )
CompactPCI Backplane Bus ( 64-bit )
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COMMERCIAL TEMPERATURE RANGE
©1998 Integrated Device Technology, Inc.
SEPTEMBER 1998
DSC-4267/1
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IDT7M9535/36/37
COMPACT PCI SMART I/O CARD
PRELIMINARY
COMMERCIAL TEMPERATURE RANGE
BOARD OVERVIEW
The IDT7M9535/36/37 consists of the following functional
blocks: 21154 PCI to PCI Bridge, C3 processor, GT64120
PCI System Controller Chip, DRAM memory, system glue
logic, Flash/EPROM and serial port controller. The
IDT7M9535/36/37 CPU subsystem is designed to interface
with its targeted system through a standard CompactPCI bus
interface.
to be expanded up to a maximum of 128 Mbytes.
BOOT EPROM
The Boot EPROM is a JEDEC standard 32 pin PLCC
EPROM socket which can support up to 512KB ( 512k x 8)
which holds the boot code for the board.
SERIAL I/O
The IDT7M9535/36/37 has two 16550A compatible RS232
serial ports. The serial ports come out to two 10 pin headers
(2x5).
The 10 pin headers have the following pinout/definition:
Header Pinout/Definition (Top View)
DCD
1
2
DSR
RD
3
4
RTS
TD
5
6
CTS
DTR
7
8
RI
GND
9
10
NC
PCI TO PCI BRIDGE
The 21154 PCI to PCI Bridge is a high performance 64-
bit to 64-bit PCI bridge that is compliant to PCI Revision 2.1.
This chip isolates the primary (backplane) and on board
secondary PCI busses. This isolation allows concurrent PCI
traffic on the backplane and secondary PCI busses.
IDT C3 PROCESSOR CARD
The IDT C3 (Common-bus CPU Card) is a mezzanine
based card that provides a common hardware interface for
IDT’s family of 64-bit MIPS processors (RV4650, RV4700
and RV5000). In addition, this card also has the following
features:
• up to 1MB of optional L2 cache.
• 5V tolerant Inputs and I/Os.
• R4X00/R5000 bus interface.
• Watchdog Timer.
WATCHDOG RESET
The watchdog reset is generated from the watchdog timer
included on the C3. It is used to generate a warm reset to the
processor if it has not been strobed within 1 second.
SYSTEM GLUE LOGIC
The system glue logic is responsible for the following
functions:
• Processor General Purpose Registers (GPR0, GPR1)
• Device Decoding
• Interrupt Masking/Mapping
• Primary PCI bus Interrupt Generation
PCI SYSTEM CONTROLLER
The GT64120 from Galileo Technology, Inc. is designed
to connect a high speed processor to peripheral devices. It
is specifically designed to interface with the MIPS family of
64-bit processors. It connects the CPU to an asynchronous
local device bus which is used to interface with the boot
EPROM, Serial I/O, and Flash memory. It also has a built-in
DRAM controller for interfacing the processor to the onboard
SDRAM main memory with minimal glue logic. In addition,
the chip provides a CPU bus to PCI bus bridge. The
GT64120 can be configured as either a PCI bus master or a
PCI bus slave device.
INTERRUPTS
The processor on the IDT7M9535/36/37 supports the
following onboard interrupt sources:
• GT64120 interrupt
• Serial I/O interrupts
• PMC Slot 1 interrupt
• PMC Slot 2 interrupt
• Processor internal timer interrupt
DRAM
The main memory consists of two 144 pin sockets which
can be populated with standard 64-bit synchronous DRAM
(SDRAM) SODIMMs. One or both SODIMM sockets may be
populated, each occupying separate banks. Parity is not
supported on the SDRAM.
Each SODIMM can support one or two banks of SDRAM
dependent on the type of SODIMM being used. One bank is
supported when single bank SDRAM SODIMMs are used
(e.g., 1Meg x 64), and two banks are supported when double
bank SDRAM SODIMMs are used (e.g., 2Meg x 64). The
design can use any standard SDRAM DIMM containing 8MB
(1Meg x 64), 16MB (2Meg x 64), 32MB (4Meg x 64), or 64MB
(8Meg x 64) allowing the memory on the IDT7M9535/36/37
RESET
The IDT7M9535/36/37 supports several reset sources
which include:
• Power on reset
•
Manual Cold Reset (Front panel accessible)
•
SW Warm Reset.
•
Backplane CPCI Reset bus (Generates a Cold Reset to
the card).
•
Watchdog warm reset.
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IDT7M9535/36/37
COMPACT PCI SMART I/O CARD
PRELIMINARY
COMMERCIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT
XXXXX
Device
Type
X
Power
X
Speed
X
Package
X
Process/
Temperature
Range
Blank
Commercial (0°C to +70°C)
Blank
Processor Core Frequency (MHz)
200
180
175
150
100
S
7M9535
7M9536
7M9537
Notes:
1. For other C3 options consult factory.
RV4650/RV5000 Only
RV4700 Only
RV4700/RV4650 Only
Standard Power
CPCI Smart I/O Card w/RV5000 Processor
CPCI Smart I/O Card w/RV4700 Processor
CPCI Smart I/O Card w/RV4650 Processor
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嵌入式系统
