參數(shù)資料
型號: PCI1520I
廠商: Texas Instruments, Inc.
英文描述: PC CARD CONTROLLERS
中文描述: PC卡控制器
文件頁數(shù): 63/138頁
文件大?。?/td> 745K
代理商: PCI1520I
41
4 PC Card Controller Programming Model
This section describes the PCI1520 PCI configuration registers that make up the 256-byte PCI configuration header
for each PCI1520 function. As noted, some bits are global in nature and are accessed only through function 0.
4.1
PCI Configuration Registers (Functions 0 and 1)
The PCI1520 is a multifunction PCI device, and the PC Card controller is integrated as PCI functions 0 and 1. The
configuration header is compliant with the
PCI Local Bus Specification
as a CardBus bridge header and is
PC 99
compliant as well. Table 41 shows the PCI configuration header, which includes both the predefined portion of the
configuration space and the user-definable registers.
Table 41. PCI Configuration Registers (Functions 0 and 1)
REGISTER NAME
OFFSET
Device ID
Vendor ID
00h
Status
Command
04h
Class code
Revision ID
08h
BIST
Header type
Latency timer
Cache line size
0Ch
CardBus socket/ExCA base address
10h
Secondary status
Reserved
Capability pointer
14h
CardBus latency timer
Subordinate bus number
CardBus bus number
PCI bus number
18h
CardBus Memory base register 0
1Ch
CardBus Memory limit register 0
20h
CardBus Memory base register 1
24h
CardBus Memory limit register 1
28h
CardBus I/O base register 0
2Ch
CardBus I/O limit register 0
30h
CardBus I/O base register 1
34h
CardBus I/O limit register 1
38h
Bridge control
Interrupt pin
Interrupt line
3Ch
Subsystem ID
Subsystem vendor ID
40h
PC Card 16-bit I/F legacy-mode base address
44h
Reserved
48h7Ch
System control
80h
Reserved
84h88h
Multifunction routing
8Ch
Diagnostic
Device control
Card control
Retry status
90h
Reserved
94h9Ch
Power-management capabilities
Next-item pointer
Capability ID
A0h
Power-management data
Power-management
control/status bridge
support extensions
Power-management control/status
A4h
General-purpose event enable
General-purpose event status
A8h
General-purpose output
General-purpose input
ACh
Serial bus control/status
Serial bus slave address
Serial bus index
Serial bus data
B0h
Reserved
B4hFCh
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