參數(shù)資料
型號(hào)： 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)： 30/138頁
文件大小： 723K
代理商： DZPD6722VCCE
PD6710/
’
22
—
ISA-to-PC-Card (PCMCIA) Controllers
30
Datasheet
4.1.3
PD67XX Functional Blocks
4.1.4
Interrupts
The PD67XX provides ten interrupt pins that are labeled with names suggesting their mapping in
the system, though there are no hard requirements specifying the exact mapping. Typically, all ten
interrupt pins should be connected to system interrupt signals to allow maximum flexibility in
programming interrupt routing from the PD67XX.
Classes of Interrupts
The PD67XX supports two classes of interrupts:
Socket or card interrupts initiated by the PC Card activating its RDY/-IREQ signal
Management interrupts triggered by changes in PC Card status, including:
—
Card insertion or removal
—
Battery warning indicator (BVD2) change on a memory-type card
—
Battery dead indicator (BVD1) or I/O-type card status change (-STSCHG)
—
Ready (RDY) status change on a memory-type card
Either class of interrupts can be routed to any of the ten interrupt pins on the PD67XX.
Figure 7. Functional Block Diagram
Operation
Registers
Mapper
and
Offset
Socket
Bus Control
Socket
Write
FIFO
Power Control
Interrupt
Control
Synthe-
sizer
Bus
Interface
Unit
Per Chip
Per Socket
Control
Data
Address
V
CC
Control
V
PP
Control
Control
Address
Data
Clock
INTR
IRQs
Timing Control
-WAIT
WP/-IOIS16
CD1, CD2
BVD, -STSCHG
RDY/-IREQ
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