參數(shù)資料
型號(hào): 37C669
廠商: SMSC Corporation
英文描述: DIODE SCHOTTKY SINGLE 25V 200mW 0.5V-vf 200mA-IFM 30mA-IF 2uA-IR SOD-323 3K/REEL
中文描述: 電腦98/99順從超級(jí)I / O軟盤控制器與紅外線支持
文件頁數(shù): 80/164頁
文件大?。?/td> 621K
代理商: 37C669
22
PS/2 Model 30 Mode
BIT 0 nDRIVE SELECT 2
Active low status of the DS2 disk interface
output.
BIT 1 nDRIVE SELECT 3
Active low status of the DS3 disk interface
output.
BIT 2 WRITE GATE
Active high status of the latched WGATE output
signal.
This bit is latched by the active going
edge of WGATE and is cleared by the read of
the DIR register.
BIT 3 READ DATA
Active high status of the latched RDATA output
signal. This bit is latched by the inactive going
edge of RDATA and is cleared by the read of the
DIR register.
BIT 4 WRITE DATA
Active high status of the latched WDATA output
signal. This bit is latched by the inactive going
edge of WDATA and is cleared by the read of
the DIR register.
This bit is not gated with
WGATE.
BIT 5 nDRIVE SELECT 0
Active low status of the DS0 disk interface
output.
BIT 6 nDRIVE SELECT 1
Active low status of the DS1 disk interface
output.
BIT 7 nDRV2
Active low status of the DRV2 disk interface
input.
7
6
5
4
3
2
1
0
nDRV2
nDS1
nDS0
WDATA
F/F
RDATA
F/F
WGATE
F/F
nDS3
nDS2
RESET
COND.
N/A
1
0
1
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