CODE Master receiving nack on data

Table 1. CODE I2C Code example
Master receive nack on data. Address 0x23, data 0xdd. Polling mode. No error checking.
LPC_I2C->CFG = I2C_CFG_MSTEN;
while(!(LPC_I2C->STAT & I2C_STAT_MSTPENDING));
if((LPC_I2C->STAT & I2C_STAT_MSTSTATE) != I2C_STAT_MSTST_IDLE)abort();
LPC_I2C->MSTDAT = (0x23 << 1) | 0; // address and 0for RWn bit in order to write data
LPC_I2C->MSTCTL = I2C_MSTCTL_MSTSTART; // send start
while(!(LPC_I2C->STAT & I2C_STAT_MSTPENDING));
if((LPC_I2C->STAT & I2C_STAT_MSTSTATE) != I2C_STAT_MSTSTX)abort();
LPC_I2C->MSTDAT = 0xdd; // send data
LPC_I2C->MSTCTL = I2C_MSTCTL_MSTCONTINUE; // continue transaction
while(!(LPC_I2C->STAT & I2C_STAT_MSTPENDING));
if((LPC_I2C->STAT & I2C_STAT_MSTSTATE) != I2C_STAT_MSTST_NACKX)abort();
LPC_I2C->MSTCTL = I2C_MSTCTL_MSTSTOP; // stop transaction
while(!(LPC_I2C->STAT & I2C_STAT_MSTPENDING));
if((LPC_I2C->STAT & I2C_STAT_MSTSTATE) != I2C_STAT_MSTST_IDLE)abort();

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