Texas Instruments AFE79 Series - 2.16.266 Register 433 h (offset = 433 h) [reset = 0 h]; 2.16.267 Register 434 h (offset = 434 h) [reset = 1 h]; 2.16.268 Register 437 h (offset = 437 h) [reset = 0 h]

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Serial Interface Register Maps
2.16.266 Register 433h (offset = 433h) [reset = 0h]
Figure 2-2529. Register 433h
7 6 5 4 3 2 1 0
ACTIV_BIR_DIR_CTRL_GPIO_12 reserved
R/W-0h R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2545. Register 433 Field Descriptions
Bit Field Type Reset Description
3-1
ACTIV_BIR_DIR_C
TRL_GPIO_12
R/W 0h
Control to indicate whether the GPIO_12 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
2.16.267 Register 434h (offset = 434h) [reset = 1h]
Figure 2-2530. Register 434h
7 6 5 4 3 2 1 0
reserved reserved BUF_DIR_CTRL_GPIO_13
R/W-0h R/W-0h R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2546. Register 434 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_13
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
2.16.268 Register 437h (offset = 437h) [reset = 0h]
Figure 2-2531. Register 437h
7 6 5 4 3 2 1 0
ACTIV_BIR_DIR_CTRL_GPIO_13 reserved
R/W-0h R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset