Texas Instruments AFE79 Series - 2.16.396 Register 537 h (offset = 537 h) [reset = 0 h]; 2.16.397 Register 538 h (offset = 538 h) [reset = 1 h]; 2.16.398 Register 53 Bh (offset = 53 Bh) [reset = 0 h]

www.ti.com IO Wrap Register Map
1129
SBAU337–May 2020
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
2.16.396 Register 537h (offset = 537h) [reset = 0h]
Figure 2-2659. Register 537h
7 6 5 4 3 2 1 0
ACTIV_BIR_DIR_CTRL_GPIO_77 reserved
R/W-0h R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2675. Register 537 Field Descriptions
Bit Field Type Reset Description
3-1
ACTIV_BIR_DIR_C
TRL_GPIO_77
R/W 0h
Control to indicate whether the GPIO_77 needs dynamic
ouptu t enabling.
0 to 3 --> Static direction
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.
0-0 reserved R/W 0h
2.16.397 Register 538h (offset = 538h) [reset = 1h]
Figure 2-2660. Register 538h
7 6 5 4 3 2 1 0
reserved reserved BUF_DIR_CTRL_GPIO_78
R/W-0h R/W-0h R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2676. Register 538 Field Descriptions
Bit Field Type Reset Description
7-5 reserved R/W 0h
4-2 reserved R/W 0h
1-0
BUF_DIR_CTRL_G
PIO_78
R/W 1h
Controls the direction of GPIO
0 both input and output are not selected.. can be used for
analog
1 input mode
2 output mode
3 shouldnt be used
2.16.398 Register 53Bh (offset = 53Bh) [reset = 0h]
Figure 2-2661. Register 53Bh
7 6 5 4 3 2 1 0
ACTIV_BIR_DIR_CTRL_GPIO_78 reserved
R/W-0h R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset