MC9S12HY64 Datasheet, PDF(39/792 Page) Freescale Semiconductor, Inc – S12 Microcontrollers

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MC9S12HY64 Datasheet, PDF (39/792 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

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Device Overview MC9S12HY/HA-Family

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

outputs 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

outputs 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

1.7.3.16 PS3 / TXCAN â Port S I/O Pin 3

PS3 is a general-purpose input or output pin. It can be conï¬gured as the transmit pin TXCAN of the

scalable controller area network controller (CAN).

MC9S12HY/HA-Family Reference Manual, Rev. 1.04

Freescale Semiconductor

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