PFS154 datasheet(13/91 Pages) PADAUK

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PFS154

8bit MTP Type IO Controller

Page 13 of 91

PDK-DS-PFS154_CN_V105 –Jun. 9, 2020

Pin Name

Pin & Buffer

Type

Description

PA3 /

TM2PWM /

COM4 /

CIN1- /

PG2PWM

ST /

CMOS /

Analog

This pin can be used as:

(1) Bit 3 of port A. It can be configured as digital input or two-state output, with

pull-up resistor by software independently.

(2) Minus input source 1 of comparator.

(3) Output of 8-bit Timer2 (TM2)

(4) COM4 to provide (1/2 VDD) for LCD display

(5) Output of 11-bit PWM generator PWMG2

When this pin is configured as analog input, please use bit 3 of register padier to

disable the digital input to prevent current leakage. This pin can be used to

wake-up system during sleep mode; however, wake-up function is also disabled if

bit 3 of padier register is “0”.

PA0 /

INT0 /

CO /

COM2 /

PG0PWM

ST /

CMOS /

Analog

This pin can be used as:

(1) Bit 0 of port A. It can be configured as digital input or two-state output, with

pull-up resistor by software independently.

(2) External interrupt line 0. Both rising edge and falling edge are accepted to

request interrupt service.

(3) Output of comparator

(4) Output of 11-bit PWM generator PWMG0

(5) COM2 to provide (1/2 VDD) for LCD display

When this pin is configured as analog input, please use bit 0 of register padier to

disable the digital input to prevent current leakage. This pin can be used to

wake-up system during sleep mode; however, wake-up function is also disabled if

bit 0 of padier register is “0”.

PB7 /

TM3PWM /

CIN3- /

PG1PWM

ST /

CMOS /

Analog

This pin can be used as:

(1) Bit 7 of port B. It can be configured as digital input or two-state output with,

pull-up resistor by software independently.

(2) Minus input source 3 of comparator.

(3) Output of 8-bit timer Timer3 (TM3)

(4) Output of 11-bit PWM generator PWMG1

When this pin is configured as analog input, please use bit 7 of register pbdier to

disable the digital input to prevent current leakage. This pin can be used to

wake-up system during sleep mode; however, wake-up function is also disabled if

bit 7 of pbdier register is “0”.

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