80960CF-40(2002) Просмотр технического описания (PDF) - Intel
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80960CF-40 Datasheet PDF : 70 Pages
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80960-40, -33, -25
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Purpose
This document provides electrical characteristics of Intel’s i960® CF embedded microprocessor.
For functional descriptions consult the i960® CA/CF Microprocessor User’s Manual (order
number 270710). To obtain data sheet updates and errata, visit the Intel World Wide Web site at
http://www.intel.com or contact your Intel field sales representative.
80960CF Processor Overview
Intel’s 80960CF is the second processor in the series of superscalar i960 microprocessors that also
includes the 80960CA and the 80960HA/HD/HT. Upgrading from the 80960CA to the 80960CF is
straightforward because the two processors are socket- and object code-compatible.
As shown in Figure 1, the 80960CF’s instruction cache is 4 Kbytes; data cache is 1 Kbyte
(80960CA instruction cache is 1 Kbyte; it does not have a data cache.) This extra cache on the CF
adds a significant performance boost over the CA.
Figure 1. 80960CF Processor-Block Diagram
Interrupt
Port
Programmable
Interrupt Controller
Multiply/Divide
Unit
Execution
Unit
Instruction
Prefetch Queue
Instruction Cache
(4 Kbyte, Two-Way
Set Associative)
128-BIT CACHE BUS
Parallel
Instruction
Scheduler
Register-side
Machine Bus
Memory-side
Machine Bus
Six-Port
Register File
64-Bit
SRC1 Bus
32-Bit
Base Bus
64-Bit
SRC2 Bus
128-Bit
Load Bus
64-Bit
DST Bus
128-Bit
Store Bus
Four-Channel
DMA Controller
DMA Port
Memory Region
Configuration
Bus Controller
Bus Request
Queues
Control
Address
Data
1 Kbyte
Direct Mapped
Data Cache
1 Kbyte
Data RAM
5 to 15 Sets
Register Cache
Address
Generation Unit
F_CF001A
Datasheet
7
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