Table of Contents
Advertisement
Chapter 11
I/O Configuration
The I/O configuration controls:
• Pin Muxing: Provides registers to program the pin muxing on the device.
• Pull-up/Pull-down Resistors: Provides registers to control the pull-up and pull-down
resistors on certain pins of the chip.
11.1 Theory of Operation
The I/O Configuration (IOCON) is an AMBA slave block that connects to the APB.
It provides registers for programming pin muxing and for controlling the pull-up and
pull-down resistors on certain pins of the chip.
These registers should be programmed before any others so that pins are correctly
configured before enabling functional blocks that use those pins.
Version 1.0
11-1
Advertisement
Table of Contents
