參數(shù)資料
型號： PCI1410GHK
廠商： Texas Instruments, Inc.
英文描述： PC CARD CONTROLLERS
中文描述： PC卡控制器
文件頁數(shù)： 50/145頁
文件大?。?/td> 606K
代理商： PCI1410GHK
3–16
Table 3–8. Interrupt Mask and Flag Registers
CARD TYPE
EVENT
MASK
FLAG
16-bit
16 bit
memory
Battery conditions
(BVD1, BVD2)
ExCA offset 05h/805h
bits 1 and 0
ExCA offset 04h/804h
bits 1 and 0
Wait states
(READY)
ExCA offset 05h/805h
bit 2
ExCA offset 04h/804h
bit 2
16 bit I/O
16-bit I/O
Change in card status
(STSCHG)
ExCA offset 05h/805h
bit 0
ExCA offset 04h/804h
bit 0
Interrupt request
(IREQ)
Always enabled
PCI configuration offset 91h
bit 0
All 16-bit
PC Cards
Power cycle complete
ExCA offset 05h/805h
bit 3
ExCA offset 04h/804h
bit 3
Change in card status
(CSTSCHG)
Socket mask
bit 0
Socket event
bit 0
CardBus
Interrupt request
(CINT)
Always enabled
PCI configuration offset 91h
bit 0
Power cycle complete
Socket mask
bit 3
Socket event
bit 3
Card insertion or
removal
Socket mask
bits 2 and 1
Socket event
bits 2 and 1
Functional interrupt events are valid only for 16-bit I/O and CardBus cards; that is, the functional interrupts are not
valid for 16-bit memory cards. Furthermore, card insertion and removal-type CSC interrupts are independent of the
card type. Table 3–9 describes the PC Card interrupt events.
Table 3–9. PC Card Interrupt Events and Description
CARD TYPE
EVENT
TYPE
SIGNAL
DESCRIPTION
Battery conditions
(BVD1, BVD2)
CSC
BVD1(STSCHG)//CSTSCHG
A transition on BVD1 indicates a change in the
PC Card battery conditions.
16-bit
memory
BVD2(SPKR)//CAUDIO
A transition on BVD2 indicates a change in the
PC Card battery conditions.
Wait states
(READY)
CSC
READY(IREQ)//CINT
A transition on READY indicates a change in the ability
of the memory PC Card to accept or provide data.
16 bit I/O
16-bit I/O
Change in card
status (STSCHG)
CSC
BVD1(STSCHG)//CSTSCHG
The assertion of STSCHG indicates a status change
on the PC Card.
Interrupt request
(IREQ)
Functional
READY(IREQ)//CINT
The assertion of IREQ indicates an interrupt request
from the PC Card.
CardBus
Change in card
status (CSTSCHG)
CSC
BVD1(STSCHG)//CSTSCHG
The assertion of CSTSCHG indicates a status change
on the PC Card.
Interrupt request
(CINT)
Functional
READY(IREQ)//CINT
The assertion of CINT indicates an interrupt request
from the PC Card.
All PC Cards
Card insertion
or removal
CSC
CD1//CCD1,
CD2//CCD2
A transition on either CD1//CCD1 or CD2//CCD2
indicates an insertion or removal of a 16-bit or CardBus
PC Card.
Power cycle
complete
CSC
N/A
An interrupt is generated when a PC Card power-up
cycle has completed.
The naming convention for PC Card signals describes the function for 16-bit memory, I/O cards, and CardBus. For
example, READY(IREQ)//CINT includes READY for 16-bit memory cards, IREQ for 16-bit I/O cards, and CINT for
CardBus cards. The 16-bit memory card signal name is first, with the I/O card signal name second, enclosed in
parentheses. The CardBus signal name follows after a double slash (//).
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