Texas Instruments CC3235 SimpleLink Series - Pin Groups for Audio Interface (I2 S); Pin Groups for SPI Interface (GSPI); Pin Groups for SD-Card Interface; 16.8 Pin Mapping Recommendations

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SWRU543–January 2019
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I/O Pads and Pin Multiplexing
16.8 Pin Mapping Recommendations
For certain high-speed interfaces, TI recommends using the pin groups listed in the following tables.
Table 16-8 lists the recommended pin groups for I2S.
Table 16-8. Pin Groups for Audio Interface (I2S)
Signal Pin Group 1 Pin Group 2 Pin Group 3
Data 0 45 64 52 (Tx Only)
Data 1 50 50 50
Clock 53 62 53
Frame Sync 63 63 45
Table 16-9 lists the recommended pin groups for SPI.
Table 16-9. Pin Groups for SPI Interface (GSPI)
Signal Pin Group 1 Pin Group 2
MOSI 7 52
MISO 6 53
CLK 5 45
CS 8 50
Table 16-10 lists the recommended pin groups for SD-Card interface.
Table 16-10. Pin Groups for SD-Card Interface
Signal Pin Group 1 Pin Group 2
CLK 1 (GPIO_10) 7 (GPIO_16)
CMD 2 (GPIO_11) 8 (GPIO_17)
DATA 64 (GPIO_09) 6 (GPIO_15)
IRQ (future support) 63 (GPIO_8) 63 (GPIO_8)