3-4
MPC8240 Integrated Processor User’s Manual
Address Map B
Figure 3-1. Processor Core Address Map B in Host Mode
Processor
MPC8240 Memory Controller
0
memory space
Local
2GB
Reserved
PCI memory space
4GB - 20MB
PCI I/O Space
0
64KB
8MB
12MB
4GB
0
Not forwarded
to PCI bus.
Memory controller
performs local
memory access
1GB
PCI Memory Space
ROM or Flash
PCI Int Ack
CONFIG_DATA
CONFIG_ADDR
4GB
4GB - 16MB
4GB - 17MB
4GB - 18MB
4GB - 24MB
4GB - 32MB + 64KB
PCI I/O space
4GB - 32MB
Int Ack Broadcast PCI
ROM Access
PCI Configuration
Access
PCI I/O space
Clears A[31] and
forwards to PCI
Memory Space
PCI memory space in
range
2 to 4GB - 32MB
4GB - 32MB
I/O addresses in
0 to 64KB range
I/O addresses in
8MB to 12MB range
Not addressable by
processor
Memory select error
Local
memory
cycles
Not addressable by
processor
2GB
Not addressable by
processor
4GB - 16MB
4GB
If local ROM,
not addressable as
PCI memory.
If remote ROM,
PCI memory space
Clears A[31:24] and
forwards to PCI I/O
space except
0xFE01_0000–
0xFE7F_FFFF
which is reserved
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 ...