IBM PowerPC 604 User Manual page 13

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Number
CONTENTS
Title
Page
Number
6.5 Execution Unit Timings ..................................................................................... 6-35
6.5.1 Branch Unit Instruction Timings ................................................................... 6-35
6.5.2 Integer Unit Instruction Timings ................................................................... 6-35
6.5.3 Floating-Point Unit Instruction Timings ........................................................ 6-37
6.5.4 Load/Store Unit Instruction Timings ............................................................. 6-39
6.5.5 isync, rfi, and sc Instruction Timings ............................................................ 6-41
6.6 Instruction Scheduling Guidelines ..................................................................... 6-42
6.6.1 Instruction Dispatch Rules ............................................................................. 6-42
6.6.2 Additional Programming Tips for the PowerPC 604 Processor .................... 6-43
6.7 Instruction Latency Summary ............................................................................ 6-45
7.1
7.2
7.2.1
7.2.1.1
7.2.1.2
7.2.1.3
7.2.1.3.1
7.2.1.3.2
7.2.2
7.2.2.1
7.2.2.1.1
7.2.2.1.2
7.2.2.2
7.2.2.2.1
7.2.2.2.2
7.2.3
7.2.3.1
7.2.3.1.1
7.2.3.1.2
7.2.3.1.3
7.2.3.1.4
7.2.3.2
7.2.3.2.1
7.2.3.2.2
7.2.3.3
7.2.4
7.2.4.1
7.2.4.1.1
7.2.4.1.2
x
Chapter 7
Signal Descriptions
Signal Configuration ............................................................................................ 7-2
Signal Descriptions .............................................................................................. 7-3
Address Bus Arbitration Signals ...................................................................... 7-3
Bus Request (BR)--Output ......................................................................... 7-4
Bus Grant (BG)-lnput ............................................................................... 7-4
Address Bus Busy (ABB) ............................................................................ 7-5
Address Bus Busy (ABB)--Output ......................................................... 7-5
Address Bus Busy (ABB)-Input ........................................................... 7-5
Address Transfer Start Signals ........................................................................ 7-6
Transfer Start (TS) ....................................................................................... 7-6
Transfer Start (TS)--Output .................................................................... 7-6
Transfer Start (TS)-Input ...................................................................... 7-6
Extended Address Transfer Start (XA TS) ................................................... 7-6
Extended Address Transfer Start (XATS)--Output. ............................... 7-6
Extended Address Transfer Start (XA TS)-Input .................................. 7-7
Address Transfer Signals ................................................................................. 7-7
Address Bus (AO-A31) ................................................................................ 7-7
Address Bus (AO-A31}-0utput (Memory Operations) ........................ 7-7
Address Bus (AO-A31)-lnput (Memory Operations) ........................... 7-7
Address Bus (AO-A31}-0utput (Direct-Store Operations) .................. 7-8
Address Bus (AO-A31)-lnput (Direct-Store Operations) ..................... 7-8
Address Bus Parity (APO-AP3) ................................................................... 7-8
Address Bus Parity (APO-AP3)--0utput ............................................... 7-8
Address Bus Parity (APO-AP3)-Input .................................................. 7-9
Address Parity Error (APE}-Output.. ........................................................ 7-9
Address Transfer Attribute Signals .................................................................. 7-9
Transfer Type (TTO-TT4) ......................................................................... 7-10
Transfer Type (TTO-TT4}-0utput ...................................................... 7-10
Transfer Type (TTO-TT4)-Input ......................................................... 7-10
PowerPC 604 RISC Microprocessor User's Manual