Gpio Port A Qualification Control (Gpactrl) Register; Gpio Port A Qualification Control (Gpactrl) Register Field Descriptions - Texas Instruments Concerto F28M36 Series Technical Reference Manual

C28 General-Purpose Input/Output (GPIO)

4.2.7.13 GPIO Port A Qualification Control (GPACTRL) Register

The GPIO Port A Qualification Control (GPACTRL) register is shown and described in the figure and table
below.
Figure 4-54. GPIO Port A Qualification Control (GPACTRL) Register
31
QUALPRD3
15
QUALPRD1
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
The GPxCTRL registers specify the sampling period for input pins when configured for input qualification
using a window of 3 or 6 samples. The sampling period is the amount of time between qualification
samples relative to the period of SYSCLKOUT. The number of samples is specified in the GPxQSELn
registers.
Table 4-63. GPIO Port A Qualification Control (GPACTRL) Register Field Descriptions
Bits Field Value
31-24 QUALPRD3
23-16 QUALPRD2
15-8 QUALPRD1
7-0 QUALPRD0
(1)
This register is EALLOW protected.
(2)
T indicates the period of SYSCLKOUT.
SYSCLKOUT
424
General-Purpose Input/Output (GPIO)
24
R/W-0
8
R/W-0
Specifies the sampling period for pins GPIO24 to GPIO31.
0x00 Sampling Period = T
SYSCLKOUT
0x01 Sampling Period = 2 × T
0x02 Sampling Period = 4 × T
. . . . . .
0xFF Sampling Period = 510 × T
Specifies the sampling period for pins GPIO16 to GPIO23.
0x00 Sampling Period = T
SYSCLKOUT
0x01 Sampling Period = 2 × T
0x02 Sampling Period = 4 × T
. . . . . .
0xFF Sampling Period = 510 × T
Specifies the sampling period for pins GPIO8 to GPIO15.
0x00 Sampling Period = T
SYSCLKOUT
0x01 Sampling Period = 2 × T
0x02 Sampling Period = 4 × T
. . . . . .
0xFF Sampling Period = 510 × T
Specifies the sampling period for pins GPIO0 to GPIO7.
0x00 Sampling Period = T
SYSCLKOUT
0x01 Sampling Period = 2 × T
0x02 Sampling Period = 4 × T
. . . . . .
0xFF Sampling Period = 510 × T
Copyright © 2012–2019, Texas Instruments Incorporated
23
7
Description
(2)
SYSCLKOUT
SYSCLKOUT
SYSCLKOUT
(2)
SYSCLKOUT
SYSCLKOUT
SYSCLKOUT
(2)
SYSCLKOUT
SYSCLKOUT
SYSCLKOUT
(2)
SYSCLKOUT
SYSCLKOUT
SYSCLKOUT
SPRUHE8E – October 2012 – Revised November 2019
QUALPRD2
R/W-0
QUALPRD0
R/W-0
(1)
Submit Documentation Feedback
www.ti.com
16
0