Toshiba H1 Series User Manual

Page 195

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TMP92CZ26A

92CZ26A-192

(5) Recovery (Data hold) cycle control

Some memory have an AC specification about data hold time from

CE

or

OE

for read

cycle and a data confliction problem may occur. To avoid this problem, 1-dummy cycle can
be inserted after CSm-block access cycle by setting “1” to BmCSH<BmREC> register.

This 1-dummy cycle is inserted when the next cycle is for another CS-block.

BnCSH<BnREC>

0

No dummy cycle is inserted (Default).

1

Dummy cycle is inserted.

When not inserting a dummy cycle (0 waits)

When inserting a dummy cycle (0 waits)

SDCLK

A23 to A0

CSm

CSn

RD

SDCLK

A23 to A0

CSm

CSn

RD

Dummy

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