參數(shù)資料
型號(hào): MSM60804GS-K4
廠商: OKI ELECTRIC INDUSTRY CO LTD
元件分類: 總線控制器
英文描述: PCMCIA BUS CONTROLLER, PQFP208
封裝: 28 X 28 MM, 0.50 MM PITCH, PLASTIC, QFP-208
文件頁數(shù): 28/54頁
文件大?。?/td> 978K
代理商: MSM60804GS-K4
Semiconductor
MSM60804
32
Card Status Change Register
The card Status Change Register indicates the cause of an interrupt, as shown below. The bits are
defined below.
D7 D6 D5 D4 D3 D2 D1 D0
Slot A : Index value (base+04h)
Slot B : Index value (base+44h)
Battery Dead /
STSCHG
Battery Warning
Ready Change
Card Detect Change
Reserved
Card Status Change Register (Read/Write)
Card Status Change Register Description
Bits
Description
Bit 3
Bit 2
Bit 1
Bit 0
Card Detect Change. When set to "1", this bit indicates CD1 and CD2 Signal Status Change (LH).
Ready Change. When set to "1", this bit indicates a RDY/
BSY Signal Change(LH).
Battery Warning. When set to "1", this bit indicates a Battery Warning Status Change (GoodWarning,
DeadWarning).
Battery Dead. When set to "1", this bit indicates a Battery Dead Status Change (GoodDead, WarningDead).
Note that a
STSCHG signal status change has taken place in I/O Card mode.
When the card status change explicit write back notification bit of the general control register (+1Eh,
+5Eh) is "0", the contents of the register are cleared and the interrupt is canceled, by reading this
register.
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