PFS123 datasheet(14/104 Pages) PADAUK

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PFS123

8bit MTP MCU with 12-bit R-Type ADC

Page 14 of 104

PDK-DS-PFS123-EN_V000-Aug. 26, 2020

Pin Name

Pin Type &

Buffer Type

Description

PA0 /

AD10 /

CO /

INT0 /

PG0PWM

ST /

CMOS /

Analog

The functions of this pin can be:

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

pull-high resistor.

(2) Channel 10 of ADC analog input

(3) Output of comparator

(4) External interrupt line 0. It can be used as an external interrupt line 0. Both rising

edge and falling edge are accepted to request interrupt service and configurable

by register setting.

(5) Output of 11-bit PWM generator PWMG0

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

disable the digital input to prevent current leakage. The bit 0 of padier register can be

set to “0” to disable digital input; wake-up from power-down by toggling this pin is also

disabled.

PB7 /

AD7 /

CIN5- /

TM3PWM /

PG1PWM

ST /

CMOS /

Analog

The functions of this pin can be:

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

pull-high resistor independently by software

(2) Channel 7 of ADC analog input

(3) Minus input source 5 of comparator

(4) PWM output from Timer3

(5) 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. The bit 7 of pbdier register can be

set to “0” to disable digital input; wake-up from power-down by toggling this pin is also

disabled.

PB6 /

AD6 /

COM4 /

CIN4- /

TM3PWM /

PG1PWM /

PG0PWM

ST /

CMOS /

Analog

The functions of this pin can be:

(1) Bit 6 of port B. It can be configured as digital input or two-state output, with

pull-high resistor independently by software.

(2) Channel 6 of ADC analog input

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

(4) Minus input source 4 of comparator

(5) PWM output from Timer3

(6) Output of 11-bit PWM generator PWMG1

(7) Output of 11-bit PWM generator PWMG0

When this pin is configured as analog input, please use bit 6 of register pbdier to

disable the digital input to prevent current leakage. The bit 6 of pbdier register can be

set to “0” to disable digital input; wake-up from power-down by toggling this pin is also

disabled.

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