参数资料
型号: SPD6729QCE
厂商: INTEL CORP
元件分类: 总线控制器
英文描述: PCMCIA BUS CONTROLLER, PQFP208
封装: MQFP-208
文件页数: 93/116页
文件大小: 1442K
代理商: SPD6729QCE
PD6729 — PCI-to-PC Card (PCMCIA) Controller
78
Datasheet
This bit allows the LED_OUT* pin to reflect any activity in the card. Whenever PCMCIA cycles
are in process to or from a card in either socket, LED_OUT* will be active low.
Bit 3: Invert Card IRQ Output
This bit changes the active-high, ISA-type card IRQ level to an active-low, open-collector output
that complies with PCI bus requirements.
Bit 4: Invert Management IRQ Output
This bit changes the active-high, ISA-type management IRQ level to an active-low, open-collector
output that complies with PCI bus requirements.
Table 10. Bit 5: Pull-Up Control
This bit turns off the pull-ups on VS2, VS1, CD2, and CD1. Turning off these pull-ups can be used
in addition to Suspend mode to even further reduce power when cards are inserted but no card
accessibility is required. Even though power may or may not still be applied, all pull-ups and their
associated inputs will be disabled.
Note:
Insertion or removal of a card cannot be determined when this bit is set to a ‘1’. Also, when a card
is already in the socket, a card detect interrupt will be generated when this bit is changed from a ‘0’
to ‘1’.
10.7.2
System Memory Map 0-4 Upper Address
0
The card IRQ is active-high.
1
The card IRQ is active-low and open-drain.
0
The management IRQ is active-high.
1
The management IRQ is active-low and open-drain.
0
Pull-ups on VS2, VS1, CD2, and CD1 are in use.
1
Pull-ups on VS2, VS1, CD2, and CD1 are turned off.
Register Name: System Memory Map 0-4
Upper Address
Index: 2Fh
Extended Index: 05h–09h
Register Per: socket
Register Compatibility Type: ext.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1v0
Upper Address
RW:00000000
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