IO Wrap Register Map
1016
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
2.16.62 Register 251h (offset = 251h) [reset = 2h]
Figure 2-2325. Register 251h
7
6
5
4
3
2
1
0
IBUF_ST_GPIO_20
R/W-2h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2341. Register 251 Field Descriptions
Bit
Field
Type
Reset
Description
1-0
IBUF_ST_GPIO_2
0
R/W
2h
Input buffer signal strength
2.16.63 Register 252h (offset = 252h) [reset = 0h]
Figure 2-2326. Register 252h
7
6
5
4
3
2
1
0
ODRIV_DS_GPIO_20
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2342. Register 252 Field Descriptions
Bit
Field
Type
Reset
Description
1-0
ODRIV_DS_GPIO_
20
R/W
0h
output buffer drive strength.
2.16.64 Register 254h (offset = 254h) [reset = 1h]
Figure 2-2327. Register 254h
7
6
5
4
3
2
1
0
PULL_CTRL_GPIO_21
R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2343. Register 254 Field Descriptions
Bit
Field
Type
Reset
Description
2-0
PULL_CTRL_GPIO
_21
R/W
1h
Bit 0 indicates Pull up enable.
Bit <1> Indicates Pull value.
Bit <2> is unused.
2.16.65 Register 255h (offset = 255h) [reset = 2h]
Figure 2-2328. Register 255h
7
6
5
4
3
2
1
0
IBUF_ST_GPIO_21
R/W-2h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset