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TMS570LS0714
www.ti.com
SPNS226E – JUNE 2013 – REVISED NOVEMBER 2016
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TMS570LS0714
Peripheral Information and Electrical Specifications
Copyright © 2013–2016, Texas Instruments Incorporated
7.6
General-Purpose Input/Output
The GPIO module on this device supports two ports, GIOA and GIOB. The I/O pins are bidirectional and
bit-programmable. Both GIOA and GIOB support external interrupt capability.
7.6.1
Features
The GPIO module has the following features:
•
Each I/O 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 7.1.1
and
Section 7.1.2
.