IO Wrap Register Map
1069
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
2.16.246 Register 40Bh (offset = 40Bh) [reset = 0h]
Figure 2-2509. Register 40Bh
7
6
5
4
3
2
1
0
ACTIV_BIR_DIR_CTRL_GPIO_2
reserved
R/W-0h
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2525. Register 40B Field Descriptions
Bit
Field
Type
Reset
Description
3-1
ACTIV_BIR_DIR_C
TRL_GPIO_2
R/W
0h
Control to indicate whether the GPIO_2 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
2.16.247 Register 40Ch (offset = 40Ch) [reset = 1h]
Figure 2-2510. Register 40Ch
7
6
5
4
3
2
1
0
reserved
reserved
BUF_DIR_CTRL_GPIO_3
R/W-0h
R/W-0h
R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2526. Register 40C 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_3
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
2.16.248 Register 40Fh (offset = 40Fh) [reset = 0h]
Figure 2-2511. Register 40Fh
7
6
5
4
3
2
1
0
ACTIV_BIR_DIR_CTRL_GPIO_3
reserved
R/W-0h
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset