IO Wrap Register Map
1067
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
Table 2-2519. Register 33E Field Descriptions
Bit
Field
Type
Reset
Description
1-0
ODRIV_DS_GPIO_
79
R/W
0h
output buffer drive strength.
2.16.241 Register 400h (offset = 400h) [reset = 1h]
Figure 2-2504. Register 400h
7
6
5
4
3
2
1
0
reserved
reserved
BUF_DIR_CTRL_GPIO_0
R/W-0h
R/W-0h
R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2520. Register 400 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_0
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
2.16.242 Register 403h (offset = 403h) [reset = 0h]
Figure 2-2505. Register 403h
7
6
5
4
3
2
1
0
ACTIV_BIR_DIR_CTRL_GPIO_0
reserved
R/W-0h
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2521. Register 403 Field Descriptions
Bit
Field
Type
Reset
Description
3-1
ACTIV_BIR_DIR_C
TRL_GPIO_0
R/W
0h
Control to indicate whether the GPIO_0 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
2.16.243 Register 404h (offset = 404h) [reset = 1h]
Figure 2-2506. Register 404h
7
6
5
4
3
2
1
0
reserved
reserved
BUF_DIR_CTRL_GPIO_1
R/W-0h
R/W-0h
R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset