A80960CF33 Intel, A80960CF33 Datasheet - Page 9

• Manufacturer Part Number: A80960CF33
• Description: IC MPU I960CF 33MHZ 168-PGA
• Manufacturer: Intel

Specifications of A80960CF33

• Processor Type: i960
• Features: CF suffix, 32-Bit with DMA, 4K Cache
• Speed: 33MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 168-PGA
• Family Name: 80960
• Device Core Size: 32b
• Frequency (max): 33MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: 0C to 100C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 168
• Package Type: CPGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 803084

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Datasheet
Pipelined, Burst Bus
A 32-bit high performance bus controller interfaces the 80960CF to external memory and
peripherals. The Bus Control Unit features a maximum transfer rate of 160 Mbytes per second (at
40 MHz). Internally programmable wait states and 16 separately configurable memory regions
allow the processor to interface with a variety of memory subsystems with a minimum of system
complexity and a maximum of performance. The Bus Control Unit’s main features include:
Instruction Set Summary
Table 1
of the instruction set, see the i960
Flexible DMA Controller
A four-channel DMA controller provides high speed DMA control for data transfers involving
peripherals and memory. The DMA provides advanced features such as data chaining, byte
assembly and disassembly and a high performance fly-by mode capable of transfer speeds of up to
71 Mbytes per second at 40 MHz. The DMA controller features a performance and flexibility
which is only possible by integrating the DMA controller and the 80960CF core.
Priority Interrupt Controller
A programmable-priority interrupt controller manages up to 248 external sources through the 8-bit
external interrupt port. The Interrupt Unit also handles the four internal sources from the DMA
controller and a single non-maskable interrupt input. The 8-bit interrupt port may also be
configured to provide individual interrupt sources that are level or edge triggered.
80960CF interrupts are prioritized and signaled within 225 ns of the request. When the interrupt is
of higher priority than the processor priority, the context switch to the interrupt routine typically
completes in another 400 ns. The interrupt unit provides the mechanism for the low latency and
high throughput interrupt service which is essential for embedded applications.
Table 1
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Demultiplexed, burst bus to exploit most efficient DRAM access modes
Address pipelining to reduce memory cost while maintaining performance
32-, 16- and 8-bit modes for I/O interfacing ease
Full internal wait state generation to reduce system cost
Little and Big Endian support to ease application development
Unaligned access support for code portability
Three-deep request queue to decouple the bus from the core
summarizes the 80960CF instruction set by logical groupings. For a complete description
presents the 80960CF Instruction Set.
®
CA/CF Microprocessor User’s Manual (order number 270710).
80960-40, -33, -25
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