Gpio Port C Qualification Select 1 (Gpcqsel1) Register; Gpio Port C Qualification Select 1 (Gpcqsel1) Register Field Descriptions - Texas Instruments Concerto F28M35 Series Technical Reference Manual

C28 General-Purpose Input/Output (GPIO)

4.2.7.17 GPIO Port C Qualification Select 1 (GPCQSEL1) Register

The GPIO Port C Qualification Select 1 (GPCQSEL1) register is shown and described in the figure and
table below.
Figure 4-58. GPIO Port C Qualification Select 1 (GPCQSEL1) Register
31
15 14 13 12
GPIO71 GPIO70
R/W-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 4-66. GPIO Port C Qualification Select 1 (GPCQSEL1) Register Field Descriptions
Bits Field
31-16 Reserved
15-8 GPIO71-GPIO68
7-0
(1)
This register is EALLOW protected.
408
General-Purpose Input/Output (GPIO)
Reserved
R-0
11 10 9 8
GPIO69 GPIO68
R/W-0 R/W-0
Value
Any writes to these bit(s) must always have a value of 0.
Select input qualification type for GPIO68 to GPIO71 . The input qualification of each GPIO
input is controlled by two bits.
00 Synchronize to SYSCLKOUT only. Valid for both peripheral and GPIO pins.
01 Qualification using 3 samples. Valid for pins configured as GPIO or a peripheral function.
The time between samples is specified in the GPCCTRL register.
10 Qualification using 6 samples. Valid for pins configured as GPIO or a peripheral function.
The time between samples is specified in the GPCCTRL register.
11 Asynchronous. (no synchronization or qualification). This option applies to pins configured
as peripherals only. If the pin is configured as a GPIO input, then this option is the same as
0,0 or synchronize to SYSCLKOUT.
Any writes to these bit(s) must always have a value of 0.
Copyright © 2012–2019, Texas Instruments Incorporated
7
Reserved
R-0
(1)
Description
SPRUH22I – April 2012 – Revised November 2019
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