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| PD6710 Datasheet, PDF (119/138 Pages) Intel Corporation – ISA-to-PC-Card (PCMCIA) Controllers | |||
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ISA-to-PC-Card (PCMCIA) Controllers â PD6710/â22
Figure 29. DMA Write Cycle Timing
IRQ10
(DRQ)
IRQ9
(DACK*)
t1
-IOWR, -WE
(high)
-REG
(DACK* to card)
-CE[2:1]
t2
t3
t4
-IORD
-WAIT
t5
t6
DMA DATA[15:0]
to card
-VPP_VALID
(TC from system)
-OE
(TC to card)
DMA DATA[15:0]
from card
t7
t8
t9
t10
t11 t12
Table 38. DMA Request Timing (PD6722 only)
Symbol
Parameter
MIN
MAX
Units
t1
DMA request from socket interface to system1
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 emptied
from the socket interface FIFO.
Datasheet
119
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