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SPI_MOSI
SPI_CS
SPI_SCLK
R/W bit & 7-bit
address # 1
8-bit CRC
(for previous
two bytes)
SPI_MISO
Previous R/W bit
& 7-bit address
8-bit CRC
(for previous
two bytes)
8-bit write
data # 1
Previous 8-bit
write or read data
Figure 14-5. SPI Transaction #1 Using CRC
SPI_MOSI
SPI_CS
SPI_SCLK
SPI_MISO
R/W bit & 7-bit
address # 2
8-bit CRC (for
previous two
bytes)
R/W bit & 7-bit
address # 1
8-bit CRC
(for previous
two bytes)
8-bit write data
# 2 (or don’t
care if read)
8-bit write
data # 1
Figure 14-6. SPI Transaction #2 Using CRC
SLUSE14B – DECEMBER 2020 – REVISED DECEMBER 2021
Copyright © 2021 Texas Instruments Incorporated
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