I2C_CLOCK
clock = (data&I2C_CLOCK) ? 1 : 0;
(clock ? 0 : I2C_CLOCK)|
(clock ? I2C_CLOCK : 0);
while ((DXIR(GENIODATA)&I2C_CLOCK)!=required)
clock = (data&I2C_CLOCK) ? 1 : 0;
(clock ? 0 : I2C_CLOCK)|
(clock ? I2C_CLOCK : 0);
clock = (data&I2C_CLOCK) ? 1 : 0;
(clock ? 0 : I2C_CLOCK)|
(clock ? I2C_CLOCK : 0);