Datasheet

TMS570LS0432
TMS570LS0332
SPNS186A –OCTOBER 2012–REVISED SEPTEMBER 2013 www.ti.com
5.3 General-Purpose Input/Output
The GPIO module on this device supports one port GIOA. The I/O pins are bidirectional and bit-
programmable. GIOA supports external interrupt capability.
5.3.1 Features
The GPIO module has the following features:
• Each IO pin can be configured as:
– Input
– Output
– Open Drain
• The interrupts have the following characteristics:
– Programmable interrupt detection either on both edges or on a single edge (set in GIOINTDET)
– Programmable edge-detection polarity, either rising or falling edge (set in GIOPOL register)
– Individual interrupt flags (set in GIOFLG register)
– Individual interrupt enables, set and cleared through GIOENASET and GIOENACLR registers
respectively
– Programmable interrupt priority, set through GIOLVLSET and GIOLVLCLR registers
• Internal pullup/pulldown allows unused I/O pins to be left unconnected
For information on input and output timings see Section 3.8 and Section 3.9
76 Peripheral Information and Electrical Specifications Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: TMS570LS0432 TMS570LS0332