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B-12
MPC8240 Integrated Processor User’s Manual
Little-Endian Mode
Figure B-9. One-Byte Transfer to PCI I/O Space—Little-Endian Mode
Processor
0 1 0 1
A[28–31]
Munge address
0 0 1 0
0
1
2
3
4
5
6
7
xx
xx
D2
xx
xx
xx
xx
xx
0 1 0 1
AD[3–0]
During address phase
0
1
2
3
xx
D2
xx
xx
D2
0x00
0x08
PCI I/O Space
XOR with 111
Byte lanes
PCI data bus (AD[31–0] during data phase)
PCI byte lanes (C/BE1 asserted)
Unmunges address
Runs PCI I/O transaction
Swaps byte lanes
Core
PA[28–31]
Internal peripheral logic data bus
CDU
Содержание MPC8240
Страница 1: ...MPC8240UM D Rev 1 1 2001 MPC8240 Integrated Processor User s Manual ...
Страница 38: ...xviii MPC8240 Integrated Processor User s Manual TABLES Table Number Title Page Number ...
Страница 48: ...xlviii MPC8240 Integrated Processor User s Manual Acronyms and Abbreviations ...
Страница 312: ...6 94 MPC8240 Integrated Processor User s Manual ROM Flash Interface Operation ...
Страница 348: ...7 36 MPC8240 Integrated Processor User s Manual PCI Host and Agent Modes ...
Страница 372: ...8 24 MPC8240 Integrated Processor User s Manual DMA Register Descriptions ...
Страница 394: ...9 22 MPC8240 Integrated Processor User s Manual I2O Interface ...
Страница 412: ...10 18 MPC8240 Integrated Processor User s Manual Programming Guidelines ...
Страница 454: ...12 14 MPC8240 Integrated Processor User s Manual Internal Arbitration ...
Страница 466: ...13 12 MPC8240 Integrated Processor User s Manual Exception Latencies ...
Страница 516: ...16 14 Watchpoint Trigger Applications ...
Страница 538: ...B 16 MPC8240 Integrated Processor User s Manual Setting the Endian Mode of Operation ...
Страница 546: ...C 8 MPC8240 Integrated Processor User s Manual ...
Страница 640: ...INDEX Index 16 MPC8240 Integrated Processor User s Manual ...