Datasheet

433
32142D–06/2013
ATUC64/128/256L3/4U
19.8 Module Configuration
The specific configuration for each GPIO instance is listed in the following tables. The module
bus clocks listed here are connected to the system bus clocks. Refer to the Power Manager
chapter for details.
The reset values for all GPIO registers are zero, with the following exceptions:
Table 19-3. GPIO Configuration
Feature GPIO
Number of GPIO ports 2
Number of peripheral functions 8
Table 19-4. Implemented Pin Functions
Pin Function Implemented Notes
Pull-up On all pins Controlled by PUER or peripheral
Table 19-5. GPIO Clocks
Module Name Clock Name Description
GPIO CLK_GPIO Clock for the GPIO bus interface
Table 19-6. Register Reset Values
Port Register Reset Value
0 GPER 0x004DFF5F
0 PMR0 0x00320020
0 PMR1 0x00020080
0 PMR2 0x00100800
0 PUER 0x00000001
0 GFER 0x007FFFFF
0 PARAMETER 0x007FFFFF
0 VERSION 0x00000213
1 GPER 0x0FFFFFCF
1 PMR0 0x00000030
1 PMR1 0x00000030
1 GFER 0x0FFFFFFF
1 PARAMETER 0x0FFFFFFF
1 VERSION 0x00000213