mc56f8335 Freescale Semiconductor, Inc, mc56f8335 Datasheet - Page 120

• Manufacturer Part Number: mc56f8335
• Description: 16-bit Digital Signal Controller
• Manufacturer: Freescale Semiconductor, Inc

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 Memory Maps
The width of the GPIO port defines how many bits are implemented in each of the GPIO registers. Based
on this and the default function of each of the GPIO pins, the reset values of the GPIOx_PUR and
GPIOx_PER registers change from port to port. Tables
these registers.
8.3 Configuration
There are six GPIO ports defined on the 56F8335/56F8135. The width of each port and the associated
peripheral function is shown in
shown in
120
GPIO Port
A
B
C
Table
Width
Port
14
11
8-3.
8
Available
Table 8-1 56F8335 GPIO Ports Configuration
56F8335
Pins in
11
6
5
Table 8-1
6 pins - EMI Address pins - Can only be used as GPIO
8 pins - EMI Address pins - Not available in this package
5 pins - EMI Address pins - Can only be used as GPIO
3 pins - EMI Address pins - Not available in this package
4 pins - DEC1 / TMRB / SPI1
4 pins - DEC0 / TMRA
3 pins - PWMA current sense
56F8335 Technical Data, Rev. 5
and
Table
Peripheral Function
4-29
8-2. The specific mapping of GPIO port pins is
through
4-34
define the actual reset values of
Freescale Semiconductor
EMI Address
N/A
GPIO
N/A
DEC1 / TMRB
DEC0 / TMRA
PWMA current
sense
Reset Function
Preliminary