Part 8 general purpose input/output (gpio), 1 introduction, 2 configuration – Freescale Semiconductor 56F8122 User Manual
Page 96
56F8322 Techncial Data, Rev. 10.0
96
Freescale Semiconductor
Preliminary
Part 8 General Purpose Input/Output (GPIO)
8.1 Introduction
This section is intended to supplement the GPIO information found in the 56F8300 Peripheral User
Manual and contains only chip-specific information. This information supercedes the generic information
in the 56F8300 Peripheral User Manual.
8.2 Configuration
There are three GPIO ports defined on the 56F8322/56F8122. The width of each port and the associated
peripheral function is shown in
. The specific mapping of GPIO port pins is
shown in
.
Table 8-1 56F8322 GPIO Ports Configuration
GPIO Port
Port
Width
Available
Pins in
56F8322
Peripheral Function
Reset Function
A
12
7
PWM, SPI 1
PWM
B
8
8
SPI 0, DEC 0, TMRA, SCI 1
SPI 0, DEC 0
C
7
6
XTAL, EXTAL, CAN, TMRC, SCI 0
XTAL, EXTAL, CAN, TMRC
Table 8-2 56F8122 GPIO Ports Configuration
GPIO Port
Port
Width
Available
Pins in
56F8122
Peripheral Function
Reset Function
A
12
7
SPI 1
Must be reconfigured
B
8
8
SPI 0, SCI1, TMRA
SPI 0, other pins must be reconfigured
C
7
6
XTAL, EXTAL, TMRC, SCI 0
XTAL, EXTAL, TMRC; other pins must be
reconfigured