80960CF-33 datasheet(10/77 Pages) INTEL

10 / 77 page

80960CF-40, -33, -25, -16

PRELIMINARY

2.5

Priority Interrupt Controller

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 can 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. If 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. 80960CF Instruction Set

Data Movement

Arithmetic

Logical

Bit / Bit Field / Byte

Load

Store

Move

Load Address

Add

Subtract

Multiply

Divide

Remainder

Modulo

Shift

*Extended Shift

Extended Multiply

Extended Divide

Add with Carry

Subtract with Carry

Rotate

And

Not And

And Not

Exclusive Or

Not Or

Or Not

Nor

Exclusive Nor

Not

Nand

Set Bit

Clear Bit

Not Bit

Alter Bit

Scan For Bit

Span Over Bit

Extract

Modify

Scan Byte for Equal

Comparison

Branch

Call/Return

Fault

Compare

Conditional Compare

Compare and Increment

Compare and Decrement

Test Condition Code

Check Bit

Unconditional Branch

Conditional Branch

Compare and Branch

Call

Call Extended

Call System

Return

Branch and Link

Conditional Fault

Synchronize Faults

Debug

Processor Mgmt

Atomic

Modify Trace Controls

Mark

Force Mark

Flush Local Registers

Modify Arithmetic Controls

Modify Process Controls

*System Control

*DMA Control

Atomic Add

Atomic Modify

NOTES: Instructions marked by (*) are 80960Cx extensions to the 80960 instruction set.

80960CF-33 Datasheet(PDF) 10 Page - Intel Corporation

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