Figure 32.18 pcmcia i/o bus cycle – Renesas SH7781 User Manual
Page 1614
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32. Electrical Characteristics
Rev.1.00 Jan. 10, 2008 Page 1584 of 1658
REJ09B0261-0100
D15 to D0
D15 to D0
(Write)
(Read)
Legend:
IO: DACK
device
SA:
Single-address DMA transfer
DA:
Dual-address DMA transfer
Note: DACK is configured as active-high.
A25 to A0
Tpci1
Tpci2
Tpci0
Tpci1
Tpci2
Tpci1w
Tpci1w
Tpci2w
CLKOUT
t
AD
t
AD
t
BSD
t
BSD
t
BSD
t
BSD
t
WDD
t
WDD
t
RWD
t
CSD
t
CSD
t
RWD
t
ICRSD
t
ICRSD
t
ICWSDF
t
ICWSDF
t
DACD
t
RDH
t
RDS
t
RDYH
t
RDYS
t
RDYH
t
RDYS
t
IO16H
t
IO16S
t
IO16H
t
IO16S
t
DACD
t
AD
t
AD
t
WDD
t
WDD
t
WDD
t
RWD
t
CSD
t
CSD
t
RWD
t
ICRSD
t
ICRSD
t
ICRSD
t
ICWSDF
t
ICWSDF
t
ICWSDF
t
DACD
t
RDH
t
RDS
t
DACD
(1) TED = 0, THE = 0, no wait
(2) TED = 1, THE = 1, internal wait + external wait cycles
CExx
REG (WE0)
RD/
WR
ICIOWR (WE2)
ICIORD (WE3)
BS
RDY
IOIS16
DACKn
(DA)
Figure 32.18 PCMCIA I/O Bus Cycle
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