Communications Processor - Integrated Device Technology
Description
IDTTM InterpriseTM Integrated Communications Processor
79RC32435
Device Overview
The 79RC32435 is a member of the IDT™ Interprise™ family of PCI integrated communications processors.
It incorporates a high performance CPU core and a number of on-chip peripherals.
The integrated processor is designed to transfer information from I/O modules to main memory with minimal CPU intervention, using a highly sophisticated direct memory access (DMA) engine.
All data transfers through the RC32435 are achieved by writing data from an on-chip I/O peripheral to main memory and then out to another I/O module.
Features
x 32-bit CPU Core – MIPS32 instruction set – Cache Sizes: 8KB instruction and data caches, 4-Way set associative, cache line locking, non-blocking prefetches – 16 dual-entry JTLB with variable page sizes – 3-entry instruction TLB – 3-entry data TLB – Max issue rate of one 32x16 multiply per clock – Max issue rate of one 32x32 multiply every other clock – CPU control with start, stop, and single stepping – Software breakpoints support – Hardware breakpoints on virtual addresses – ICE Interface that is compatible with v2.
5 of the EJTAG Specification
x PCI Interface – 32-bit PCI revision 2.
2 compliant – Supports host or satellite operation in both master and target modes – Support for synchronous and asynchronous operation – PCI clock supports frequencies from 16 MHz to 66 MHz – PCI arbiter in Host mode: supports 6 external masters, fixed priority or round robin arbitration – I2O “like” PCI Messaging Unit
x Ethernet Interface – 10 and 100 Mb/s ISO/IEC 8802-3:1996 compliant – Supports MII or RMII PHY interface – Supports 64 entry hash table based multicast address filtering – 512 byte transmit and receive FIFOs – Supports flow control functions outlined in IEEE Std.
802.
3x1997
x DDR Memory Controller – Supports up to 256MB of DDR SDRAM – 1 chip select supporting 4 internal DDR banks – Supports a 16-bit wide data port using x8 or x16 bit wide DDR SDRAM devices – Suppor...
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