W79E217A Datasheet, PDF (86/207 Pages) Winbond – 8-bit Microcontroller

Preliminary W79E217A Data Sheet
MODE
PROGRAM
MEMORY
ALE
Idle Internal 1
Idle External 1
Power
Down
Internal
0 ^[1]
1 ^[2]
Power
Down
External
0 ^[1]
1 ^[2]
PSEN PORT0 PORT1 PORT2 PORT3 PORT4 PORT5 PORT6 PORT7
1
Data
1
Float
0 ^[1]
1 ^{[2] Data}
0 ^[1]
1 ^{[2] Float}
Data
Data
Data
Data
Data Data
Address Data
Data Data
Data Data
Data
Data
Data
Data
Data
Data
Data
Data
Data
Data
Data
Data
Data
Data
Data
Data
Table 9-1: Status of external pins during Idle and Power Down
Note:
1. When PWDNH=0.
2. When PWDNH=1.
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Publication Release Date: December 14, 2007
Revision A3.0