IO Wrap Register Map
1087
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
2.16.291 Register 464h (offset = 464h) [reset = 1h]
Figure 2-2554. Register 464h
7
6
5
4
3
2
1
0
reserved
reserved
BUF_DIR_CTRL_GPIO_25
R/W-0h
R/W-0h
R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2570. Register 464 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_25
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
Unused as this is fixed IO
2.16.292 Register 467h (offset = 467h) [reset = 0h]
Figure 2-2555. Register 467h
7
6
5
4
3
2
1
0
ACTIV_BIR_DIR_CTRL_GPIO_25
reserved
R/W-0h
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2571. Register 467 Field Descriptions
Bit
Field
Type
Reset
Description
3-1
ACTIV_BIR_DIR_C
TRL_GPIO_25
R/W
0h
Control to indicate whether the GPIO_26 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.
Unused as this is fixed IO
0-0
reserved
R/W
0h
2.16.293 Register 468h (offset = 468h) [reset = 1h]
Figure 2-2556. Register 468h
7
6
5
4
3
2
1
0
reserved
reserved
BUF_DIR_CTRL_GPIO_26
R/W-0h
R/W-0h
R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-2572. Register 468 Field Descriptions
Bit
Field
Type
Reset
Description
7-5
reserved
R/W
0h
4-2
reserved
R/W
0h