Question: Write driver code to interface 2 3 A 6 4 0 / 2 3 K 6 4 0 SPI RAM to LPC 1 8 5

Write driver code to interface 23A640/23K640 SPI RAM to LPC 1857 MCU.
Assume that, development I supported by following CSL of SPI.
void SPI_init();// Initializes SPI unit
void SPI_byteWrite( int8_t byte); //byte to write
void SPI_byteRead(int8_t *byte); //read byte into *byte

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