參數(shù)資料
型號: ISD-300A1
英文描述: Universal Serial Bus
中文描述: 通用串行總線
文件頁數(shù): 45/67頁
文件大?。?/td> 580K
代理商: ISD-300A1
ISD-300A1
40
October 19, 2001
ATA Interface Line States
The following table depicts the ATA interface line state dependency with the various controlling input pins.
Control Signals
ATA Interface / Power Management
VBUS_SUSPEND
DD[15:0], NCS[1:0], DA[2:0], ATA_PD_EN, ATA_PU_EN,
NDIOR, NDIOW, NDMACK, NATA_RESET = ’0’
OPERATIONAL
ATA_PD_EN = ‘0’
ATA_PU_EN = ‘1’
( NCS[1:0], DA[2:0] NDIOR, NDIOW, NDMACK, NATA_RESET = ‘1’
when the ATA interface is idle)
ATA_HIZ
ATA_PD_EN, ATA_PU_EN, and all other ATA interface signals = ‘Z’
N
A
D
D
0
X
1
1
0
1
X
X
0
X
X
X
(= 1)
0
1
VBUS_SUSPEND state for the ATA interface.
ATA_HIZ. All ATA interface signals are 3-stated (hi-Z).
VBUS_SUSPEND state for ATA interface. This is a Hybrid powered application
(VBUS powered ISD-300A1, brick powered ATA/ATAPI device)
VBUS_SUSPEND state for the ATA interface.
OPERATIONAL. VBUS / Brick powered normal operation mode
(1) DRV_PWR_VALID is active (polarity is correct) OR is disabled by configuration data.
1
1
1
1
1
1
Notes:
Table 21 – ATA Interface Line States
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