Nuvoton NuMicro MS51PC0AE - Page 24

MS51
Nov. 28, 2019 Page 24 of 491 Rev 1.00
MS51 32K SERIES TECHNICAL REFERENCE MANUAL
Pin Number
Symbol
Multi-Function Description
[1]
MS51XC0BE
QFN 20
MS51FC0AE
TSSOP20
MS51EC0AE
TSSOP28
MS51PC0AE
LQFP 32
MS51TC0AE
QFN 33
UART1_TXD
UART1 transmit data output.
-
-
-
10
P3.7
Port 3 bit 7.
UART1_RXD
UART1 receive input.
Note:
1. All I/O pins can be configured as a interrupt pin. This feature is not listed in multi-function description. See
Chapter 6.4.3 Pin Interrupt (PIT)
2. UART0_TXD and UART0_RXD pins are software exchangeable by UART0PX (AUXR1.2).
3. [I2C] alternate function remapping option. I2C pins is software switched by I2CPX (I2CON.0).
4. [STADC] alternate function remapping option. STADC pin is software switched by STADCPX(ADCCON1.6).
5. PIOx register decides which pins are PWM or GPIO.
6. UART2_TXD and UART2_RXD pin is defined by AUXR2 register. UART3_TXD, UART3_RXD, UART4_TXD
and UART4_RXD pin defined by AUXR3 register.