W79E225A_08 Datasheet, PDF (193/203 Pages) Winbond – 8-bit Microcontroller

Preliminary W79E225A/226A/227A Data Sheet
24.7 Data Memory Read Cycle
ALE
PSEN
RD
PORT 0 INSTRUCTION
IN
PORT 2
t_LLDV
t_LLAX1
t_LLWL
t_AVLL
t_AVWL1
t_RLRH
t_RLDV
t_RLAZ
ADDRESS
A0-A7
t_AVDV1
t_AVDV2
t_WHLH
t_RHDZ
DATA
IN
t_RHDX
ADDRESS
A0-A7
ADDRESS A8-A15


24.8 Data Memory Write Cycle
ALE
PSEN
WR
PORT 0 _INSTRUCTION
IN
PORT 2
t_LLAX2
t_AVLL
t_LLWL
t_AVWL1
ADDRESS
A0-A7
t_WLWH
t_WHLH
t_QVWX
t_WHQX
DATA OUT
ADDRESS
A0-A7
t _AVDV2
ADDRESS A8-A15


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Publication Release Date: April 15, 2008
Revision A4.0