參數(shù)資料
型號: PCI1620PDV
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項(xiàng)-數(shù)據(jù)表參考
文件頁數(shù): 113/164頁
文件大?。?/td> 720K
代理商: PCI1620PDV
5
7
5.3
ExCA Power Control Register
This register provides PC Card power control. Bit 7 of this register enables the 16-bit outputs on the socket interface,
and can be used for power management in 16-bit PC Card applications. See Table 5
5 for a complete description
of the register contents.
Bit
7
6
5
4
3
2
1
0
Name
ExCA power control
Type
RW
R
R
RW
RW
R
RW
RW
Default
0
0
0
0
0
0
0
0
Register:
Offset:
ExCA power control
CardBus Socket Address + 802h:
Card A ExCA Offset 02h
Card B ExCA Offset 42h
Type:
Default:
Read-only, Read/Write
00h
Table 5
4. ExCA Power Control Register Description
82365SL Support
BIT
SIGNAL
TYPE
FUNCTION
7
COE
RW
Card output enable. Bit 7 controls the state of all of the 16-bit outputs on the PCI1620. This bit is
encoded as:
0 = 16-bit PC Card outputs disabled (default)
1 = 16-bit PC Card outputs enabled
6
RSVD
R
Reserved. Bit 6 returns 0 when read.
5
AUTOPWRSWEN
RW
Auto power switch enable.
0 = Automatic socket power switching based on card detects is disabled.
1 = Automatic socket power switching based on card detects is enabled.
4
CAPWREN
RW
PC Card power enable.
0 = VCC = No connection
1 = VCC is enabled and controlled by bit 2 (EXCAPOWER) of the system control register
(PCI offset 80h, see Section 4.31).
3
2
RSVD
R
Reserved. Bits 3 and 2 return 0s when read.
1
0
EXCAVPP
RW
PC Card VPP power control. Bits 1 and 0 are used to request changes to card VPP. The PCI1620 ignores
this field unless VCC to the socket is enabled. This field is encoded as:
00 = No connection (default)
01 = VCC
10 = 12 V
11 = Reserved
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