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参数资料
| 型号： | SII0680A |
| 元件分类： | 存储控制器/管理单元 |
| 英文描述： | IDE COMPATIBLE, CD ROM CONTROLLER, PQFP144 |
| 封装： | LQFP-144 |
| 文件页数： | 2/34页 |
| 文件大小： | 280K |
| 代理商： | SII0680A |
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SiI 0680A Data Sheet Revision 1.31-1
10
Subject to change without notice
1.7 PCI Interface
The SiI 0680A PCI interface is compliant with the PCI Local Bus Specification (Revision 2.2). PCI stands for Peripheral
Component Interconnect, a high-performance and robust interconnect bus that provides a processor-independent data
path between the CPU and high-speed peripherals. The PCI Specification is monitored by the PCI Special Interest Group
(PCI-SIG). The PCI-SIG is an unincorporated association of members of the microcomputer industry created to monitor and
enhance the development of PCI architecture and is governed by PCI-SIG bylaws (HTTP://www.pcisig.com/).
The SiI 0680A can act as a PCI master and a PCI slave, and contains the SiI 0680A PCI configuration space and internal
registers. When the SiI 0680A needs to access shared memory, it becomes the bus master of the PCI bus and completes
the memory cycle without external intervention. In the mode when it acts as a bridge between the PCI bus and the IDE/ATA
bus it will behave as a PCI slave.
1.8 PCI Initialization
Generally, when a system initializes a module containing a PCI device, the configuration manager reads the configuration
space of each PCI device on the PCI bus. Hardware signals select a specific PCI device based on a bus number, a slot
number, and a function number. If a device that is addressed (via signal lines) responds to the configuration cycle by
claiming the bus, then that function's configuration space is read out from the device during the cycle. Since any PCI device
can be a multifunction device, every supported function's configuration space needs to be read from the device. Based on
the information read, the configuration manager will assign system res ources to each supported function within the device.
Sometimes new information needs to be written into the function's configuration space. This is accomplished with a
configuration write cycle.
1.9 PCI Bus Operations
SiI 0680A behaves either as a PCI master or a PCI slave device at any time and switches between these modes as
required during device operation.
As a PCI slave, the SiI 0680A responds to the following PCI bus operations:
I/O Read
I/O Write
Configuration Read
Configuration Write
Memory Read
Memory Write
All other PCI cycles are ignored by the SiI 0680A.
As a PCI master, the SiI 0680A generates the following PCI bus operations:
Memory Read Multiple
Memory Read Line
Memory Read
Memory Write
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SII0680ACL144 | 制造商:SILICONIMAGE 制造商全称:SILICONIMAGE 功能描述:PCI to IDE/ATA |
| SII0680ACLU144 | 制造商:Silicon Image Inc 功能描述:STEELVINE HOST CONTROLLER |
| SII1000 | 制造商:SILICONIMAGE 制造商全称:SILICONIMAGE 功能描述:PanelLink Receivers |
| SII100N06 | 制造商:SIRECTIFIER 制造商全称:Sirectifier Semiconductors 功能描述:NPT IGBT Modules |
| SII100N12 | 制造商:SIRECTIFIER 制造商全称:Sirectifier Semiconductors 功能描述:NPT IGBT Modules |
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