Texas Instruments AFE79 Series Programming & User Manual page 1100

IO Wrap Register Map
Bit Field
BUF_DIR_CTRL_G
1-0
PIO_41
2.16.324 Register 4A7h (offset = 4A7h) [reset = 0h]
7 6
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Bit Field
ACTIV_BIR_DIR_C
3-1
TRL_GPIO_41
0-0 reserved
2.16.325 Register 4A8h (offset = 4A8h) [reset = 1h]
7 6
reserved
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Bit Field
7-5 reserved
4-2 reserved
BUF_DIR_CTRL_G
1-0
PIO_42
1100
Serial Interface Register Maps
Table 2-2602. Register 4A4 Field Descriptions (continued)
Type
R/W
Figure 2-2587. Register 4A7h
5 4
Table 2-2603. Register 4A7 Field Descriptions
Type
R/W
R/W
Figure 2-2588. Register 4A8h
5 4
Table 2-2604. Register 4A8 Field Descriptions
Type
R/W
R/W
R/W
Copyright © 2020, Texas Instruments Incorporated
Reset Description
Controls the direction of GPIO
0 both input and output are not selected.. can be used for
analog
1h
1 input mode
2 output mode
3 shouldnt be used
3
ACTIV_BIR_DIR_CTRL_GPIO_41
R/W-0h
Reset Description
Control to indicate whether the GPIO_41 needs dynamic
ouptu t enabling.
0 to 3 --> Static direction
0h 4 --> Use the IO for 3 pin SPI B2 SDIO.
5 --> Use the IO for 4 pin SPI B2 SDO
6 --> Use the IO for 3 pin SPI B1 SDIO.
7 --> use the IO for 4 pin SPI B1 SDO.
0h
3
reserved
R/W-0h
Reset Description
0h
0h
Controls the direction of GPIO
0 both input and output are not selected.. can be used for
analog
1h
1 input mode
2 output mode
3 shouldnt be used
2 1
2 1
BUF_DIR_CTRL_GPIO_42
R/W-1h
SBAU337 – May 2020
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0
reserved
R/W-0h
0