參數(shù)資料
型號: CL-PD6722
廠商: Cirrus Logic, Inc.
英文描述: ISA-TOOPC-CARD HOST ADAPTERS
中文描述: ISA的TOOPC卡主機(jī)適配器
文件頁數(shù): 109/128頁
文件大小: 1591K
代理商: CL-PD6722
CL-PD6710/’22
ISA–to–PC-Card Host Adapters
May 1997
109
PRELIMINARY DATA SHEET v3.1
ELECTRICAL SPECIFICATIONS
Figure 15-13. DMA Request Timing
Table 15-19. DMA Request Timing (CL-PD6722 only)
Symbol
Parameter
MIN
MAX
Units
t
1
DMA request from socket interface to system
1
40
ns
1
After FIFO empty, DMA requests held off from being presented to the system until all write data to a card has been emp-
tied from the socket interface FIFO.
-INPACK, WP/-IOIS16,
or BVD2/-SPKR
2
(-DREQ from card)
t
1
IRQ10
(DRQ to system)
2
DMA Control
register bits 7 and 6 define which of these three signals serve as the active-low DMA request from the card.
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