IO Wrap Register Map
1111
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
2.16.351 Register 4DCh (offset = 4DCh) [reset = 1h]
Figure 2-2614. Register 4DCh
7
6
5
4
3
2
1
0
reserved
reserved
BUF_DIR_CTRL_GPIO_55
R/W-0h
R/W-0h
R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2630. Register 4DC 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_55
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
2.16.352 Register 4DFh (offset = 4DFh) [reset = 0h]
Figure 2-2615. Register 4DFh
7
6
5
4
3
2
1
0
ACTIV_BIR_DIR_CTRL_GPIO_55
reserved
R/W-0h
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2631. Register 4DF Field Descriptions
Bit
Field
Type
Reset
Description
3-1
ACTIV_BIR_DIR_C
TRL_GPIO_55
R/W
0h
Control to indicate whether the GPIO_55 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
2.16.353 Register 4E0h (offset = 4E0h) [reset = 1h]
Figure 2-2616. Register 4E0h
7
6
5
4
3
2
1
0
reserved
reserved
BUF_DIR_CTRL_GPIO_56
R/W-0h
R/W-0h
R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2632. Register 4E0 Field Descriptions
Bit
Field
Type
Reset
Description
7-5
reserved
R/W
0h
4-2
reserved
R/W
0h