TMS320C5504 Datasheet, PDF (119/128 Pages) Texas Instruments – TMS320C5504 Fixed-Point Digital Signal Processor

TMS320C5504
www.ti.com
SPRS659 – JANUARY 2010
5.18 General-Purpose Input/Output
The GPIO peripheral provides general-purpose pins that can be configured as either inputs or outputs.
When configured as an output, you can write to an internal register to control the state driven on the
output pin. When configured as an input, you can detect the state of the input by reading the state of the
internal register. The GPIO can also be used to send interrupts to the CPU.
The C5504 GPIO peripheral supports the following:
• Up to 26 GPIOs plus 1 general-purpose output (XF)
• The 26 GPIO pins have internal pulldowns (IPDs) which can be individually disabled
• The 26 GPIOs can be configured to generate edge detected interrupts to the CPU on either the rising
or falling edge
C5504 GPIO pin functions are multiplexed with various other signals. For more detailed information on
what signals are multiplexed with the GPIO and how to configure them, see Section 2.5, Terminal
Functions and Section 3, Device Configuration of this document.
Copyright © 2010, Texas Instruments Incorporated
Peripheral Information and Electrical Specifications 119
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