This example demonstrates how the C8051F06x smbus interface can communicate
// with a 256 byte I2C Serial EEPROM (Microchip 24LC02B).
// - Interrupt-driven smbus implementation
// - Only master states defined (no slave or arbitration)
// - Timer4 used by smbus for SCL low timeout detection
// - SCL frequency defined by <SMB_FREQUENCY> constant
