PI7C8150
2-端口 pci-至-pci 桥
进步 信息
iv
8月 22, 2002 – 修订 1.02
表格 的 内容
1 介绍 ................................................................................................................................ 1
2 信号 定义 ..................................................................................................................... 2
2.1 S
IGNAL
T
YPES
................................................................................................................................. 2
2.2 S
IGNALS
.......................................................................................................................................... 2
2.2.1 primary 总线 接口 信号
............................................................................ 2
2.2.3 时钟 信号
................................................................................................................. 5
2.2.4 miscellaneous 信号
............................................................................................. 5
2.2.5 一般 目的 i/o 接口 信号
.......................................................... 6
2.2.6 jtag boundary scan 信号
.................................................................................. 6
2.2.7 电源 和 地面
....................................................................................................... 7
2.3 管脚 列表 – 208-管脚 fqfp ............................................................................................................ 7
2.4 管脚 列表 – 256-球 pbga....................................................................................................... 9
3 pci 总线 运作 ..................................................................................................................... 10
3.1 类型 的 transactions..................................................................................................... 10
3.2 单独的 地址ess phasE ....................................................................................................... 11
3.3 设备 选择 (devsel_l) 一代 ...................................................................... 11
3.4 数据 阶段 ............................................................................................................................. 12
3.5 写 transactions .......................................................................................................... 12
3.5.1 记忆 写 transactions
................................................................................ 12
3.5.2 记忆 写 和 invalidate
............................................................................ 13
3.5.3 delayed 写 transactions
............................................................................... 13
3.5.4 写 transaction 地址 boundaries
....................................................... 14
3.5.5 buffering 多样的 写 transactions
..................................................... 15
3.5.6 快 后面的-至-后面的 transactions
....................................................................... 15
3.6 读 trANSACTIONS............................................................................................................15
3.6.1 prefetchable 读 transactions
.................................................................... 15
3.6.2 非-prefetchable 读 transactions
.......................................................... 16
3.6.3 读 prefetch 地址 boundaries
............................................................... 16
3.6.4 delayed 读 requests
.......................................................................................... 17
3.6.5 delayed 读 completion 和 目标
........................................................ 17
3.6.6 delayed 读 completion 在 initiator 总线
................................................ 18
3.6.7 快 后面的-至-后面的 读 transaction
............................................................. 19
3.7 配置 transactions ...................................................................................... 19
3.7.1 类型 0 进入 至 pi7c8150
......................................................................................... 19
3.7.2 类型 1 至 类型 0 转换
.................................................................................. 20
3.7.3 类型 1 至 类型 1 forwarding
................................................................................. 21
3.7.4 特定的 循环
.............................................................................................................. 22
3.8 transaction 末端 ............................................................................................. 23
3.8.1 主控 末端 initiated 用 pi7c8150
.................................................... 24
3.8.2 主控 abort received 用 pi7c8150
................................................................... 24
3.8.3 目标 末端 received 用 pi7c8150
.................................................... 25
3.8.4 目标 末端 initiated 用 pi7c8150
.................................................... 27
4 地址 de编码..................................................................................................................... 29
4.1 地址 范围 ................................................................................................................... 29
4.2 i/o address decoDING........................................................................................................ 29
4.2.1 i/o 根基 和 限制 地址 寄存器
................................................................ 30
4.2.2 isa 模式
........................................................................................................................... 31
: 点此下载
