W921E400 查看數據表（PDF） - Winbond

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W921E400

4-BIT MICROCONTROLLER

Winbond 

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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