Chapter 4 Port Integration Module (PIM9HZ256V2)
MC9S12HZ256 Data Sheet, Rev. 2.04
Freescale Semiconductor
117
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
Pin
Name
Pin Function
Description
Pin Function
after Reset
—
BKGD MODC
Refer to the MEBI block description chapter
Refer to the MEBI block
description chapter
BKGD
Refer to the BDM block description chapter
TAGHI
Refer to the MEBI block description chapter
Port K
PK7
ECS/ROMONE
Refer to the MEBI block description chapter
Refer to the MEBI block
description chapter
FP23
LCD driver interface
GPIO
General-purpose I/O
PK3
XADDR17
Refer to the MEBI block description chapter
BP3
LCD driver interface
GPIO
General-purpose I/O
PK2
XADDR16
Refer to the MEBI block description chapter
BP2
LCD driver interface
GPIO
General-purpose I/O
PK1
XADDR15
Refer to the MEBI block description chapter
BP1
LCD driver interface
GPIO
General-purpose I/O
PK0
XADDR14
Refer to the MEBI block description chapter
BP0
LCD driver interface
GPIO
General-purpose I/O
Port E
PE7
XCLKS
Refer to OSC block description chapter
Refer to the MEBI block
description chapter
NOACC
Refer to the MEBI block description chapter
FP22
LCD driver interface
GPIO
General-purpose I/O
PE6
IPIPE1/MODB
Refer to the MEBI block description chapter
GPIO
General-purpose I/O
PE5
IPIPE0/MODA
Refer to the MEBI block description chapter
GPIO
General-purpose I/O
PE4
ECLK
Refer to the MEBI block description chapter
GPIO
General-purpose I/O
PE3
LSTRB/TAGLO
Refer to the MEBI block description chapter
FP21
LCD driver interface
GPIO
General-purpose I/O
PE2
FP20
LCD driver interface
R/W/GPIO
Refer to the MEBI block description chapter
PE1
IRQ
Refer to the MEBI block description chapter
GPIO
General-purpose I/O
PE0
XIRQ
Refer to the MEBI block description chapter
GPIO
General-purpose I/O