W78E51B_05 Datasheet, PDF (19/25 Pages) Winbond – 8-BIT MICROCONTROLLER

W78E51B
Timing Waveforms, continued
9.3 Data Write Cycle
XTAL1
ALE
PSEN
PORT 2
PORT 0
WR
S4 S5 S6 S1 S2 S3 S4 S5 S6 S1 S2 S3
A0-A7
A8-A15
DATA OUT
T_DAD
T_DWD
T_DAW
T_DWR
9.4 Port Access Cycle
XTAL1
ALE
PORT
INPUT
SAMPLE
S5
TPDS
T PDH
S6
S1
T PDA
DATA OUT
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Publication Release Date: Sep. 6, 2005
Revision A7