PMS133 datasheet(21/106 Pages) PADAUK

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PMS133/PMS134

8bit OTP MCU with 12-bit ADC

Page 21 of 106

PDK-DS-PMS133/134-EN_V103 – Nov. 13, 2018

Pin Name

Pin Type &

Buffer Type

Description

PB3 /

AD3 /

PG2PWM

ST /

CMOS /

Analog

The functions of this pin can be:

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

pull-up resistor independently by software

(2) Channel 3 of ADC analog input

(3) Output of 11-bit PWM generator PWMG2

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

disable the digital input to prevent current leakage. The bit 3 of pbdier register can

be set to “0” to disable digital input; wake-up function by toggling this pin is also

disabled.

PB2 /

AD2 /

COM2 /

TM2PWM /

PG2PWM

ST /

CMOS /

Analog

The functions of this pin can be:

(1) Bit 2 of port B. It can be configured as digital input or two-state output, with

pull-up resistor independently by software

(2) Channel 2 of ADC analog input

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

(4) PWM output from Timer2

(5) Output of 11-bit PWM generator PWMG2.

When this pin is configured as analog input, please use pbdier.2 to disable the digital

input to prevent current leakage. The pbdier.2 can be set to “0” to disable digital

input; wake-up functionby toggling this pin is also disabled.

PB1 /

AD1 /

COM1 /

Vref

ST /

CMOS /

Analog

The functions of this pin can be:

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

pull-up resistor independently by software

(2) Channel 1 of ADC analog input

(3) COM1 to provide (1/2 VDD) for LCD display

(4) External reference high voltage for ADC.

When this pin is configured as analog input, please use bit 1 of register pbdier to

disable the digital input to prevent current leakage. The bit 1 of pbdier register can

be set to “0” to disable digital input; wake-up functionby toggling this pin is also

disabled.

PB0 /

AD0 /

COM1 /

INT1

ST /

CMOS /

Analog

The functions of this pin can be:

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

pull-up resistor independently by software

(2) Channel 0 of ADC analog input

(3) COM1 to provide (1/2 VDD) for LCD display

(4) External interrupt line 1. It can be used as an external interrupt line 1. Both rising

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

by register setting

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

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

set to “0” to disable digital input; wake-up functionby toggling this pin is also disabled.

PC5

ST /

CMOS

The function of this pin can be:

Bit 5 of port C. It can be configured as digital input, two-state output with pull-up

resistor independently by software

The bit 5 of pcdier 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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