Texas Instruments AFE79 Series - 2.16.97 Register 280 h (offset = 280 h) [reset = 1 h]; 2.16.98 Register 281 h (offset = 281 h) [reset = 2 h]; 2.16.99 Register 282 h (offset = 282 h) [reset = 0 h]; 2.16.100 Register 284 h (offset = 284 h) [reset = 1 h]

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SBAU337–May 2020
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Serial Interface Register Maps
2.16.97 Register 280h (offset = 280h) [reset = 1h]
Figure 2-2360. Register 280h
7 6 5 4 3 2 1 0
PULL_CTRL_GPIO_32
R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2376. Register 280 Field Descriptions
Bit Field Type Reset Description
2-0
PULL_CTRL_GPIO
_32
R/W 1h
Bit 0 indicates Pull up enable.
Bit <1> Indicates Pull value.
Bit <2> is unused.
2.16.98 Register 281h (offset = 281h) [reset = 2h]
Figure 2-2361. Register 281h
7 6 5 4 3 2 1 0
IBUF_ST_GPIO_32
R/W-2h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2377. Register 281 Field Descriptions
Bit Field Type Reset Description
1-0
IBUF_ST_GPIO_3
2
R/W 2h
Input buffer signal strength
Unused as this is fixed IO
2.16.99 Register 282h (offset = 282h) [reset = 0h]
Figure 2-2362. Register 282h
7 6 5 4 3 2 1 0
ODRIV_DS_GPIO_32
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2378. Register 282 Field Descriptions
Bit Field Type Reset Description
1-0
ODRIV_DS_GPIO_
32
R/W 0h
output buffer drive strength.
Unused as this is fixed IO
2.16.100 Register 284h (offset = 284h) [reset = 1h]
Figure 2-2363. Register 284h
7 6 5 4 3 2 1 0
PULL_CTRL_GPIO_33
R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset