W921E400A Datasheet, PDF (16/53 Pages) Winbond – 4-BIT MICROCONTROLLER

W921E400A/W921C400
• P4.2 to P4.3:
P4PH register: (address = 003H, default data = 0H)
b3
b2
b1
b0
Reserved
Reserved
0: P4.2 without pull-high resistor
1: P4.2 with pull-high resistor
0: P4.3 without pull-high resistor
1: P4.3 with pull-high resistor
P4TP register: (address = 004H, default data = 0H)
b3
b2
b1
b0
Reserved
Reserved
0: P4.2 work as CMOS type
1: P4.2 work as open-drain type
0: P4.3 work as CMOS type
1: P4.3 work as open-drain type
• P6.0 to P6.3:
P6PH register: (address = 005H, default data = 0H)
b3
b2
b1
b0
0: P6.0 without pull-high resistor
1: P6.0 with pull-high resistor
0: P6.1 without pull-high resistor
1: P6.1 with pull-high resistor
0: P6.2 without pull-high resistor
1: P6.2 with pull-high resistor
0: P6.3 without pull-high resistor
1: P6.3 with pull-high resistor
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