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Figure 25.11 bus release timing, Figure 25.12 pin driving timing in standby mode – Renesas SH7641 User Manual

Page 972

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Section 25 Electrical Characteristics

Rev. 4.00 Sep. 14, 2005 Page 922 of 982

REJ09B0023-0400

CKIO
(HIZCNT = 1)

BREQ

BACK

A25 to A0,
D31 to D0

RD, RD/WR,

RASU/L,

CASU/L,

CSn, WEn,

BS, CKE

CKIO
(HIZCNT = 0)

BREQH

t

BOFF2

t

BREQS

t

BACKD

t

BACKD

t

BREQH

t

BREQS

t

BON1

t

BOFF1

t

BOFF2

t

BON2

t

BON2

t

When
HZCNT = 1

When
HZCNT = 0

Figure 25.11 Bus Release Timing

CKIO input

t

STD

t

BOFF2

t

BOFF1

t

STD

t

BON2

t

BON1

Normal mode

Standby mode

Normal mode

STATUS 0

STATUS 1

A25 to A0,
D31 to D0

RD, RD/WR,

RASU/L,

CASU/L,

CSn, WEn,

BS, CKE

Figure 25.12 Pin Driving Timing in Standby Mode

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