MC9S12K Datasheet, PDF (66/126 Pages) Freescale Semiconductor, Inc – Microcontrollers

Device User Guide — 9S12KT256DGV1/D V01.09
enable the Flash EEPROM memory in the memory map (ROMCTL). At the rising edge of RESET, the
state of this pin is latched to the ROMON bit.For all other modes the reset state of the ROMON bit is as
follows:
special single : ROMCTL = 1
normal single : ROMCTL = 1
emulation expanded wide : ROMCTL = 0
emulation expanded narrow : ROMCTL = 0
special test : ROMCTL = 0
peripheral test : ROMCTL = 1
2.3.31 PK[5:0] / XADDR[19:14] — Port K I/O Pins [5:0]
PK5-PK0 are general purpose input or output pins. In MCU expanded modes of operation, these pins
provide the expanded address XADDR[19:14] for the external bus.
2.3.32 PM7 / TXCAN4 — Port M I/O Pin 7
PM7 is a general purpose input or output pin. It can be configured as the transmit pin TXCAN of the
Motorola Scalable Controller Area Network controllers 4 (CAN4).
2.3.33 PM6 / RXCAN4 — Port M I/O Pin 6
PM6 is a general purpose input or output pin. It can be configured as the receive pin RXCAN of the
Motorola Scalable Controller Area Network controllers 4 (CAN4).
2.3.34 PM5 / TXCAN0 / TXCAN4 / SCK0 — Port M I/O Pin 5
PM5 is a general purpose input or output pin. It can be configured as the transmit pin TXCAN of the
Motorola Scalable Controller Area Network controllers 0 or 4 (CAN0 or CAN4). It can be configured as
the serial clock pin SCK of the Serial Peripheral Interface 0 (SPI0).
2.3.35 PM4 / RXCAN0 / RXCAN4/ MOSI0 — Port M I/O Pin 4
PM4 is a general purpose input or output pin. It can be configured as the receive pin RXCAN of the
Motorola Scalable Controller Area Network controllers 0 or 4 (CAN0 or CAN4). It can be configured as
the master output (during master mode) or slave input pin (during slave mode) MOSI for the Serial
Peripheral Interface 0 (SPI0).
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