#include <SPI.h>
SPIClass SPI( ??? );

#define CS_PIN      ???
#define CS_INIT()   pinMode(CS_PIN, OUTPUT);
#define CS_LOW()    digitalWrite(CS_PIN, 0)
#define CS_HIGH()   digitalWrite(CS_PIN, 1)

uint16_t read(uint8_t address){
    CS_LOW(); //? always
    uint16_t v;
    SPI.transfer(address);                  // Transmit the Address(first byte)
    v  = (uint16_t)SPI.transfer(0xFF) << 8; // Transmit dummy data second byte & Receive MSB
    v |= (uint16_t)SPI.transfer(0xFF);      // Transmit dummy data third byte  & Receive LSB
    CS_HIGH(); //?
    //? 625 ns settling delay
    return v
}

void write(uint8_t address, uint16_t data){
    CS_LOW(); //? always
    SPI.transfer(address)               // Transmit First Byte,  address Byte
    SPI.transfer((uint8_t)(data >> 8))  // Transmit Second Byte, upper data Byte
    SPI.transfer((uint8_t)(data))       // Transmit Third Byte,  lower data Byte or CRC: A, B, CMD
    CS_HIGH(); //?
    //? 625 ns settling delay
}

void setup(){
    CS_INIT();
    SPI.setClockDivider( ??? );     // 1MHz
    SPI.setBitOrder( ??? );         // LSBFIRST or MSBFIRST
    SPI.setDataMode( ??? );         // SPI_MODE0,1,2,3?
    SPI.begin();
    CS_LOW(); //? always

    int v = read(0)
    Serial.print(v)
}