3. Processor Bus Interface
90
PowerSpan II User Manual
80A1010_MA001_09
Integrated Device Technology
www.idt.com
For example, if TADDR[19:0] = 0x12345 and the BS bit in the PB_SIx_CTL register equals 0
(4-Kbyte image) and the address on the processor bus is PB_A[0:31] = 0x78563412, then the PCI
address becomes 0x12345412.
summarizes the relationship between translation offset,
processor bus address, and block size of the image.
Table 14: Translation Address Mapping
PB_SIx_TADDR
Processor Bus Address (PB_A)
BS bit
(PB_SIx_CTL register)
Block Size
31
0
10011
2G
31:30
0:1
10010
1G
31:29
0:2
10001
512M
31:28
0:3
10000
256M
31:27
0:4
01111
128M
31:26
0:5
01110
64M
31:25
0:6
01101
32M
31:24
0:7
01100
16M
31:23
0:8
01011
8M
31:22
0:9
01010
4M
31:21
0:10
01001
2M
31:20
0:11
01000
1M
31:19
0:12
00111
512k
31:18
0:13
00110
256k
31:17
0:14
00101
128k
31:16
0:15
00100
64k
31:15
0:16
00011
32k
31:14
0:17
00010
16k
31:13
0:18
00001
8k
31:12
0:19
00000
4k
Содержание PowerSpan II
Страница 8: ...Contents 8 PowerSpan II User Manual 80A1010_MA001_09 Integrated Device Technology www idt com ...
Страница 14: ...List of Tables 14 PowerSpan II User Manual 80A1010_MA001_09 Integrated Device Technology www idt com ...
Страница 18: ...About this Document 18 PowerSpan II User Manual 80A1010_MA001_09 Integrated Device Technology www idt com ...
Страница 82: ...2 PCI Interface 82 PowerSpan II User Manual 80A1010_MA001_09 Integrated Device Technology www idt com ...
Страница 112: ...3 Processor Bus Interface 112 PowerSpan II User Manual 80A1010_MA001_09 Integrated Device Technology www idt com ...
Страница 156: ...7 Interrupt Handling 156 PowerSpan II User Manual 80A1010_MA001_09 Integrated Device Technology www idt com ...
Страница 380: ...12 Register Descriptions 380 PowerSpan II User Manual 80A1010_MA001_09 Integrated Device Technology www idt com ...
Страница 394: ...14 Package Information 394 PowerSpan II User Manual 80A1010_MA001_09 Integrated Device Technology www idt com ...
Страница 414: ...15 AC Timing 414 PowerSpan II User Manual 80A1010_MA001_09 Integrated Device Technology www idt com ...
Страница 416: ...16 Ordering Information 416 PowerSpan II User Manual 80A1010_MA001_09 Integrated Device Technology www idt com ...
Страница 420: ...A Hardware Implementation 420 PowerSpan II User Manual 80A1010_MA001_09 Integrated Device Technology www idt com ...
Страница 428: ...B Typical Applications 428 PowerSpan II User Manual 80A1010_MA001_09 Integrated Device Technology www idt com ...
Страница 432: ...Glossary 432 PowerSpan II User Manual 80A1010_MA001_09 Integrated Device Technology www idt com ...