79RC32334 Datasheet PDF - Integrated Device Technology
Part Number | 79RC32334 | |
Description | IDT Interprise Integrated Communications Processor | |
Manufacturers | Integrated Device Technology | |
Logo | ||
There is a preview and 79RC32334 download ( pdf file ) link at the bottom of this page. Total 30 Pages |
Preview 1 page No Preview Available ! IDTTM InterpriseTM Integrated
Communications Processor
79RC32334—Rev. Y
Features
◆ RC32300 32-bit Microprocessor
– Up to 150 MHz operation
– Enhanced MIPS-II Instruction Set Architecture (ISA)
– Cache prefetch instruction
– Conditional move instruction
– DSP instructions
www.DataSheet4–U.cSomupports big or little endian operation
– MMU with 32 page TLB
– 8kB Instruction Cache, 2-way set associative
– 2kB Data Cache, 2-way set associative
– Cache locking per line
– Programmable on a page basis to implement a write-through
no write allocate, write-through write allocate, or write-back
algorithms for cache management
– Compatible with a wide variety of operating systems
◆ Local Bus Interface
– Up to 75 MHz operation
– 26-bit address bus
– 32-bit data bus
– Direct control of local memory and peripherals
– Programmable system watch-dog timers
– Big or little endian support
◆ Interrupt Controller simplifies exception management
◆ Four general purpose 32-bit timer/counters
Block Diagram
◆ Programmable I/O (PIO)
– Input/Output/Interrupt source
– Individually programmable
◆ SDRAM Controller (32-bit memory only)
– 4 banks, non-interleaved
– Up to 512MB total SDRAM memory supported
– Implements full, direct control of discrete, SODIMM, or DIMM
memories
– Supports 16Mb through 512Mb SDRAM device depths
– Automatic refresh generation
◆ Serial Peripheral Interface (SPI) master mode interface
◆ UART Interface
– Two 16550 compatible UARTs
– Baud rate support up to 1.5 Mb/s
– Modem control signals available on one channel
◆ Memory & Peripheral Controller
– 6 banks, up to 64MB per bank
– Supports 8-,16-, and 32-bit interfaces
– Supports Flash ROM, SRAM, dual-port memory, and
peripheral devices
– Supports external wait-state generation
– 8-bit boot PROM support
– Flexible I/O timing protocols
EJTAG
In-Circuit Emulator Interface
RISCore32300
RC5000
Enhanced MIPS-II ISA Compatible
Integer CPU
CP0
32-page
TLB
2kB
2-set, Lockable
Data Cache
8kB
2-set
Lockable
Instr. Cache
IPBus
Bridge
Interrupt Control
32-bit Timers
DMA Control
Dual UART
IDT
Peripheral
Bus
Programmable I/O
SPI Control
Local
Memory/IO
Control
SDRAM
Control
PCI Bridge
Figure 1 RC32334 Block Diagram
Note: This data sheet does not apply to revision Z silicon. Contact your IDT sales representative for information on revision Z.
© 2004 Integrated Device Technology, Inc.
IDT and the IDT logo are trademarks of Integrated Device Technology, Inc.
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IDT 79RC32334—Rev. Y
Pin Description Table
The following table lists the pins provided on the RC32334. Note that those pin names followed by ”_n” are active-low signals. All external pull-ups
and pull-downs require 10 kΩ resistor.
Name
Reset
Drive
Type State Strength
Status Capability
Description
Local System Interface
mem_data[31:0] I/O Z
High Local System Data Bus
Primary data bus for memory. I/O and SDRAM.
mem_addr[25:2]
www.DataSheet4U.com
I/O [25:10] Z [25:17] Low Memory Address Bus
These signals provide the Memory or DRAM address, during a Memory or DRAM bus transaction. During
[9:2] L [16:2] High each word data, the address increments either in linear or sub-block ordering, depending on the transac-
tion type. The table below indicates how the memory write enable signals are used to address discreet
memory port width types.
Port Width
Pin Signals
mem_we_n[3]
mem_we_n[2] mem_we_n[1]
mem_we_n[0]
DMA (32-bit) mem_we_n[3]
mem_we_n[2] mem_we_n[1]
mem_we_n[0]
32-bit
mem_we_n[3]
mem_we_n[2] mem_we_n[1]
mem_we_n[0]
16-bit
Byte High Write Enable mem_addr[1] Not Used (Driven Byte Low Write
Low) Enable
8-bit
Not Used (Driven High) mem_addr[1] mem_addr[0]
Byte Write Enable
mem_cs_n[5:0]
Output H
mem_oe_n
Output H
Low with
internal
pull-up
High
mem_addr[22] Alternate function: reset_boot_mode[1].
mem_addr[21] Alternate function: reset_boot_mode[0].
mem_addr[20] Alternate function: reset_pci_host_mode.
mem_addr[19] Alternate function: modebit [9].
mem_addr[18] Alternate function: modebit [8].
mem_addr[17] Alternate function: modebit [7].
mem_addr[16] Alternate function: sdram_addr[16].
mem_addr[15] Alternate function: sdram_addr[15].
mem_addr[14] Alternate function: sdram_addr[14].
mem_addr[13] Alternate function: sdram_addr[13].
mem_addr[11] Alternate function: sdram_addr[11].
mem_addr[10] Alternate function: sdram_addr[10].
mem_addr[9] Alternate function: sdram_addr[9].
mem_addr[8] Alternate function: sdram_addr[8].
mem_addr[7] Alternate function: sdram_addr[7].
mem_addr[6] Alternate function: sdram_addr[6].
mem_addr[5] Alternate function: sdram_addr[5].
mem_addr[4] Alternate function: sdram_addr[4].
mem_addr[3] Alternate function: sdram_addr[3].
mem_addr[2] Alternate function: sdram_addr[2].
Memory Chip Select Negated
Recommend external pull-up.
Signals that a Memory Bank is actively selected.
Memory Output Enable Negated
Recommend external pull-up.
Signals that a Memory Bank can output its data lines onto the cpu_ad bus.
Table 1 Pin Description (Part 1 of 7)
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