mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 121

• Manufacturer Part Number: mc9s12e256
• Description: Hcs12 Microcontrollers 16-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

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