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S912XHY128F0VLM Datasheet, PDF (43/802 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers | |||
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Device Overview MC9S12XHY-Family
1.7.3.8 PA1 / XIRQ / FP[30]â Port A I/O Pin 1
PA1 is a general-purpose input or output pin. It can be conï¬gured as frontplane segment driver outputs
FP[30]. It also provide the non-maskable interrupt request input that provides a means of applying
asynchronous interrupt requests. This will wake up the MCU from stop or wait mode. The XIRQ interrupt
is level sensitive and active low. As XIRQ is level sensitive, while this pin is low the MCU will not enter
STOP mode. After Reset, the XIRQ default is not enabled.
1.7.3.9 PA0 / IRQ / FP[29]â Port A I/O Pin 0
PA0 is a general-purpose input or output pin. It can be conï¬gured as frontplane segment driver outputs
FP[29].Tthe maskable interrupt request input that provides a means of applying asynchronous interrupt
requests.
1.7.3.10 PB[7:4] / BP[3:0] â Port B I/O Pins [7:4]
PB[7:4] are a general-purpose input or output pins. They can be conï¬gured as backplane segment driver
output BP[3:0].
1.7.3.11 PB[3:0] / FP[39:37,28] â Port B I/O Pins [3:0]
PB[3:0] are a general-purpose input or output pins. They can be conï¬gured as frontplane segment driver
output FP[39:37,28].
1.7.3.12 PS7 / PWM3 / SDA / SS â Port S I/O Pin 7
PS7 is a general-purpose input or output pin. It can be conï¬gured as the slave selection pin SS for the serial
peripheral interface (SPI). It can be conï¬gured as the serial data pin SDA as IIC module. It can be
conï¬gured as PWM channel 3.
1.7.3.13 PS6 / PWM2 / SCK / KWS6 â Port S I/O Pin 6
PS6 is a general-purpose input or output pin. It can be conï¬gured as the serial clock SCK of the serial
peripheral interface (SPI). It can be conï¬gured as PWM channel 2. It can be conï¬gured as keypad wakeup
input.
1.7.3.14 PS5 / PWM1 / MOSI / KWS5 â Port S I/O Pin 5
PS5 is a general-purpose input or output pin. It can be conï¬gured as the master output (during master
mode) or slave input pin (during slave mode) MOSI of the serial peripheral interface (SPI). It can be
conï¬gured as PWM channel1. It can conï¬gured as keypad wakeup input.
1.7.3.15 PS4 / PWM0 / SCL / MISO â Port S I/O Pin 4
PS4 is a general-purpose input or output pin. It can be conï¬gured as the master input (during master mode)
or slave output pin (during slave mode) MISO for the serial peripheral interface (SPI).It can be conï¬gured
as the serial clock pin SCL as IIC module.It can be conï¬gured as PWM channel0
MC9S12XHY-Family Reference Manual, Rev. 1.01
Freescale Semiconductor
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