參數(shù)資料
型號: DZPD6722VCCE
廠商: INTEL CORP
元件分類: 總線控制器
英文描述: ISA-to-PC-Card (PCMCIA) Controllers
中文描述: PCMCIA BUS CONTROLLER, PQFP208
封裝: LQFP-208
文件頁數(shù): 71/138頁
文件大?。?/td> 723K
代理商: DZPD6722VCCE
ISA-to-PC-Card (PCMCIA) Controllers
PD6710/
22
Datasheet
71
Bit 3
Pulse System IRQ
This bit selects Level or Pulse mode operation of the IRQ[XX] pins for interrupts from a PC Card
RDY/-IREQ pin (
Table 2
).
Bit 4
Speaker Enable
This bit determines whether the card -SPKR pin will drive SPKR_OUT* (
Table 1
).
Bit 7
Inpack Enable
This bit is used to determine when to drive data onto the ISA bus.
Figure 11. Pulse Mode Interrupts
-INTR or
IRQ[XX]
High-Z
High-Z
Driven low
Driven high
0
RDY/-IREQ generated interrupts are passed to the IRQ[XX] pin as level-sensitive.
1
When a RDY/-IREQ interrupt occurs, the IRQ[XX] pin is driven with the pulse train shown in
Figure 11
and allows for interrupt sharing.
0
SPKR_OUT* is high-impedance.
1
SPKR_OUT* is driven from the XOR of -SPKR from each enabled socket.
0
-INPACK pin (
Table 2
) ignored.
1
-INPACK pin used to control data bus drivers during I/O read from the socket.
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