S912XHZ512F1VAG Datasheet, PDF (41/978 Pages) Freescale Semiconductor, Inc – Covers MC9S12XHZ384, MC9S12XHZ256

Chapter 1 MC9S12XHZ Family Device Overview
The input voltage threshold for PK7 can be configured to reduced levels, to allow data from an external
3.3-V peripheral to be read by the MCU operating at 5.0 V. The input voltage threshold for PK7 is
configured to reduced levels out of reset in expanded and emulation modes.
1.2.3.21 PK[6:4] / ADDR[22:20] / ACC[2:0] — Port K I/O Pin [6:4]
PK[6:4] are general-purpose input or output pins. During MCU expanded modes of operation, the
ACC[2:0] signals are used to indicate the access source of the bus cycle. This pins also provide the
expanded addresses ADDR[22:20] for the external bus. In Emulation modes ACC[2:0] is available and is
time multiplexed with the high addresses
1.2.3.22 PK[3:0] / BP[3:0] / ADDR[19:16] / IQSTAT[3:0] — Port K I/O Pins [3:0]
PK3-PK0 are general-purpose input or output pins. The pins can be configured as backplane segment
driver outputs BP3–BP0 of the LCD module. In MCU expanded modes of operation, these pins provide
the expanded address ADDR[19:16] for the external bus and carry instruction pipe information.
1.2.3.23 PL[7:4] / FP[31:28] / AN[15:12] — Port L I/O Pins [7:4]
PL7–PL4 are general-purpose input or output pins. They can be configured as frontplane segment driver
outputs FP31–FP28 of the LCD module or analog inputs for the analog-to-digital converter.
1.2.3.24 PL[3:0] / FP[19:16] / AN[11:8] — Port L I/O Pins [3:0]
PL3–PL0 are general-purpose input or output pins. They can be configured as frontplane segment driver
outputs FP19–FP16 of the LCD module or analog inputs for the analog-to-digital converter.
1.2.3.25 PM5 / TXCAN1 — Port M I/O Pin 5
PM5 is a general-purpose input or output pin. It can be configured as the transmit pin TXCAN1 of the
scalable controller area network controller 1 (CAN1)
1.2.3.26 PM4 / RXCAN1 — Port M I/O Pin 4
PM4 is a general-purpose input or output pin. It can be configured as the receive pin RXCAN1 of the
scalable controller area network controller 1 (CAN1)
1.2.3.27 PM3 / TXCAN0 — Port M I/O Pin 3
PM3 is a general-purpose input or output pin. It can be configured as the transmit pin TXCAN0 of the
scalable controller area network controller 0 (CAN0)
1.2.3.28 PM2 / RXCAN0 — Port M I/O Pin 2
PM2 is a general-purpose input or output pin. It can be configured as the receive pin RXCAN0 of the
scalable controller area network controller 0 (CAN0).
MC9S12XHZ512 Data Sheet, Rev. 1.06
Freescale Semiconductor
41