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6 burst rom read cycle – Renesas SH7641 User Manual

Page 984

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Section 25 Electrical Characteristics

Rev. 4.00 Sep. 14, 2005 Page 934 of 982

REJ09B0023-0400

25.3.6

Burst ROM Read Cycle

T1

t

AD1

t

RSD

t

RDS3

t

RSD

t

CSD1

t

AS

Tw

Twx

T2B

Twb

T2B

t

AD2

t

AD2

t

CSD1

CKIO

A25 to A0

CSn

RD/

WR

D31 to D0

WEn

BS

RD

WAIT

Note: * Waveform for

DACKn and TENDn when active low is selected.

DACKn,

TENDn*

t

AD1

t

BSD

t

DACD

t

DACD

t

BSD

t

RWD1

t

WTS1

t

WTS1

t

RWD1

t

RDH3

t

RDH3

t

WTH1

t

WTH1

t

RDS3

Figure 25.22 Burst ROM Read Cycle

(One Software Wait Cycle, One Asynchronous External Burst Wait Cycle, Two Burst)

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