參數(shù)資料
型號: CL-PD6722
廠商: Cirrus Logic, Inc.
英文描述: ISA-TOOPC-CARD HOST ADAPTERS
中文描述: ISA的TOOPC卡主機(jī)適配器
文件頁數(shù): 81/128頁
文件大?。?/td> 1591K
代理商: CL-PD6722
CL-PD6710/’22
ISA–to–PC-Card Host Adapters
May 1997
81
PRELIMINARY DATA SHEET v3.1
VS1# AND VS2# VOLTAGE DETECTION
13. VS1# AND VS2# VOLTAGE DETECTION
The CL-PD6722 provides support for VS1# and VS2# voltage sense for environments where special low-
voltage keyed PC Card sockets are to be used. With a low-voltage keyed socket, it is necessary to deter-
mine the operating voltage range of a card before applying power to it. The CL-PD6722 supports reading
of the levels on a socket’s VS1# and VS2# pins through a uniform extended register programming model
using Socket B extended register 0Ah. The programming model is as follows:
For voltage detection on the CL-PD6710, refer to the 5V_DET pin.
Register Name:
External Data
Index:
6Fh
Bit
7
Extended Index:
0Ah
Bit
4
Register Per: socket
Register Compatibility Type: ext.
Bit
1
Bit
6
Bit
5
Bit
3
Bit
2
Bit
0
External Data
7
External Data
6
External Data
5
External Data
4
B_VS2 Input
B_VS1 Input
A_VS2 Input
A_VS1 Input
RW:0
RW:0
RW:0
RW:0
R:0
R:0
R:0
R:0
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