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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