MC9S12E256 Datasheet, PDF (121/602 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Chapter 3 Port Integration Module (PIM9E256V1)
3.2 External Signal Description
This section lists and describes the signals that connect off chip.
Table 3-1 shows all the pins and their functions that are controlled by the PIM9E256V1. The order in
which the pin functions are listed represents the functions priority (top – highest priority, bottom – lowest
priority).
Port
—
Port A
Table 3-1. Detailed Signal Descriptions (Sheet 1 of 7)
Pin
Name
Pin Function
Description
BKGD
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
MODC
BKGD
TAGHI
ADDR15/DATA15
GPIO
ADDR14/DATA14
GPIO
ADDR13/DATA13
GPIO
ADDR12/DATA12
GPIO
ADDR11/DATA11
GPIO
ADDR10/DATA10
GPIO
ADDR9/DATA9
GPIO
ADDR8/DATA8
GPIO
Refer to Chapter 18, “Multiplexed External Bus Interface
(MEBIV3)”
Refer to Chapter 15, “Background Debug Module
(BDMV4)”
Refer to Chapter 18, “Multiplexed External Bus Interface
(MEBIV3)”
Refer to Chapter 18, “Multiplexed External Bus Interface
(MEBIV3)”
General-purpose I/O
Refer to Chapter 18, “Multiplexed External Bus Interface
(MEBIV3)”
General-purpose I/O
Refer to Chapter 18, “Multiplexed External Bus Interface
(MEBIV3)”
General-purpose I/O
Refer to Chapter 18, “Multiplexed External Bus Interface
(MEBIV3)”
General-purpose I/O
Refer to Chapter 18, “Multiplexed External Bus Interface
(MEBIV3)”
General-purpose I/O
Refer to Chapter 18, “Multiplexed External Bus Interface
(MEBIV3)”
General-purpose I/O
Refer to Chapter 18, “Multiplexed External Bus Interface
(MEBIV3)”
General-purpose I/O
Refer to Chapter 18, “Multiplexed External Bus Interface
(MEBIV3)”
General-purpose I/O
Pin Function
after Reset
Refer to Chapter 18,
“Multiplexed External Bus
Interface (MEBIV3)”
Refer to Chapter 18,
“Multiplexed External Bus
Interface (MEBIV3)”
MC9S12E256 Data Sheet, Rev. 1.08
Freescale Semiconductor
121