PI7C8152A & PI7C8152B
双端口PCI至PCI桥接器
超前信息
4.4
VGA支持........................................................................................................................... 41
4.4.1
VGA MODE.........................................................................................................................
41
4.4.2
VGA SNOOP MODE...........................................................................................................
42
5
交易ORDERING.......................................................................................................... 42
5.1
5.2
5.3
5.4
6
交易治理BY排序规则............................................. ........... 42
一般订购指南............................................... ....................................... 43
排序规则.................................................................................................................... 44
数据同步................................................ .................................................. 45 ..
错误HANDLING......................................................................................................................... 45
6.1
地址奇偶校验错误............................................... .................................................. ... 46
6.2
数据奇偶校验ERRORS............................................................................................................ 47
6.2.1
配置写入事务配置空间..........
47
6.2.2
读事务
.................................................................................................... 47
6.2.3
延迟写入交易............................................... ................................
48
6.2.4
张贴写事务............................................... ...................................
50
6.3
数据奇偶校验错误报告摘要............................................. .................... 52
6.4
系统错误（ SERR_L ）报告............................................ ................................... 56
7
独占访问...................................................................................................................... 57
7.1
并发锁............................................................................................................. 57
7.2
获取独占访问ACROSS PI7C8152
X
...................................................... 57
7.2.1
下行方向锁定交易
..................................... 57
7.2.2
锁定事务对上游方向
.............................................. 59
7.3
ENDING独占访问............................................... ................................................. 59
8
PCI总线ARBITRATION................................................................................................................. 60
8.1
主PCI总线仲裁.............................................. ........................................... 60
8.2
二级PCI总线仲裁.............................................. .................................... 60
8.2.1
辅助总线仲裁使用内部仲裁器....................
60
8.2.2
PREEMPTION
.................................................................................................................... 62
8.2.3
辅助总线仲裁使用外部仲裁器......................
62
8.2.4
BUS PARKING....................................................................................................................
62
9
CLOCKS ............................................................................................................................................. 63
9.1
9.2
9.3
9.4
主时钟输入......................................................................................................... 63
二级时钟输出............................................... .............................................. 63
异步模式（ PI7C8152B ONLY） ............................................ ........................... 63
同步MODE............................................................................................................ 64
PCI电源管理............................................... .................................................. ... 64
RESET............................................................................................................................................. 65
主接口， RESET ............................................... ................................................. 65
辅助接口RESET ............................................... ........................................... 65
CHIP RESET ................................................................................................................................ 66
配置REGISTERS................................................................................................ 66
10
11
11.1
11.2
11.3
12
12.1配置REGISTER.................................................................................................. 67
12.1.1供应商ID寄存器 - 偏移00H ......................................... ................................
67
12.1.2器件ID寄存器 - 偏移00H
.......................................................................... 67
12.1.3命令寄存器 - 偏移04H .......................................... ................................
68
12.1.4主状态寄存器 - 偏移04H
............................................................. 69
第90 6
2003年10月16日 - 修订版1.11
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
