MC9S12HZ256 Datasheet, PDF (117/692 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Chapter 4 Port Integration Module (PIM9HZ256V2)
4.2 External Signal Description
This section lists and describes the signals that connect off chip.
Table 4-1 shows all the pins and their functions that are controlled by the PIM9HZ256. The order in which
the pin functions are listed represents the functions priority (top – highest priority, bottom – lowest
priority).
Table 4-1. Detailed Signal Descriptions (Sheet 1 of 6)
Port
—
Port K
Port E
Pin
Name
Pin Function
BKGD MODC
BKGD
TAGHI
PK7 ECS/ROMONE
FP23
GPIO
PK3 XADDR17
BP3
GPIO
PK2 XADDR16
BP2
GPIO
PK1 XADDR15
BP1
GPIO
PK0 XADDR14
BP0
GPIO
PE7 XCLKS
NOACC
FP22
GPIO
PE6 IPIPE1/MODB
GPIO
PE5 IPIPE0/MODA
GPIO
PE4 ECLK
GPIO
PE3 LSTRB/TAGLO
FP21
GPIO
PE2 FP20
R/W/GPIO
PE1 IRQ
GPIO
PE0 XIRQ
GPIO
Description
Refer to the MEBI block description chapter
Refer to the BDM block description chapter
Refer to the MEBI block description chapter
Refer to the MEBI block description chapter
LCD driver interface
General-purpose I/O
Refer to the MEBI block description chapter
LCD driver interface
General-purpose I/O
Refer to the MEBI block description chapter
LCD driver interface
General-purpose I/O
Refer to the MEBI block description chapter
LCD driver interface
General-purpose I/O
Refer to the MEBI block description chapter
LCD driver interface
General-purpose I/O
Refer to OSC block description chapter
Refer to the MEBI block description chapter
LCD driver interface
General-purpose I/O
Refer to the MEBI block description chapter
General-purpose I/O
Refer to the MEBI block description chapter
General-purpose I/O
Refer to the MEBI block description chapter
General-purpose I/O
Refer to the MEBI block description chapter
LCD driver interface
General-purpose I/O
LCD driver interface
Refer to the MEBI block description chapter
Refer to the MEBI block description chapter
General-purpose I/O
Refer to the MEBI block description chapter
General-purpose I/O
Pin Function
after Reset
Refer to the MEBI block
description chapter
Refer to the MEBI block
description chapter
Refer to the MEBI block
description chapter
MC9S12HZ256 Data Sheet, Rev. 2.04
Freescale Semiconductor
117