/*-------------------------------------------------------

	Property of Synergy Digital Technology Ltd.

	Question/comment : chifai.cheung@synergytech.cn

	Complier : Keil uvision C-51

-------------------------------------------------------*/


sfr		PP = 0x90;		// Parallel Port 1
sbit	SCL = PP^0;		// Port bit 0
sbit	SDA	= PP^1;		// Port bit 1

char i2c_start();
void i2c_stop();
unsigned char i2c_out(unsigned char);
unsigned char i2c_in(void);
void i2c_ack(void);
void i2c_nak(void);