Digi NS9750 - Manual (Page 475)

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P C I - t o - A H B B r i d g e
CardBus Socket Force Event register
Address: A030 100C
The CardBus Socket Force Event register is used for CardBus applications only. This
register is implemented only as an address that is written to force various status and
event bits in the CardBus host bridge through software. Writing a 1 to a bit in this
register sets a corresponding bit in the CardBus Socket Event register or CardBus
Socket Present State register.
Note:
The CardBus Socket Force Event register sets selected bits that are in the
CardBus Socket Present State register. Clear these bits by clearing the
corresponding bits in the CardBus Miscellaneous Support register.
D04 R CARD_16 0 When set, indicates that a 16-bit PC card is inserted
in the socket.
This bit can also be set by writing a 1 to the
FCARD_16 bit in the CardBus Socket Force Event
register when a card is not inserted in the socket.
D03 R PWR_CYC 0 When set, indicates that the socket is powered up.
When cleared, this bit indicates that the socket is
powered down.
D02 R CCD2 0 Current state of the CardBus CCD#2 pin
0 A card is inserted in the socket.
1 No card is in the socket.
Because CCD2 can be shorted to either CVS2 or
CVS1, the value here applies when CVS[2:1] are
both 0.
D01 R CCD1 0 Current state of the CardBus CCD#1 pin
0 A card is inserted in the socket.
1 No card is in the socket.
Because CCD1 can be shorted to either CVS2 or
CVS1, the value here applies when CVS[2:1] are
both 0.
D00 R CSTSCHG 0 Current state of the CardBus CSTSCHG pin
0 CSTSCHG negated
1 CSTSCHG asserted
Bits Access Mnemonic Reset Description
Table 282: Cardbus Socket Present State register