Microchip Technology MA330016 Data Sheet

© 2007-2011 Microchip Technology Inc.

DS70290J-page 167

bit 3

S: Start bit 
1 = Indicates that a Start (or Repeated Start) bit has been detected last
0 = Start bit was not detected last
Hardware set or clear when Start, Repeated Start or Stop detected.

bit 2

R_W: Read/Write Information bit (when operating as I

2

C slave)

1 = Read – indicates data transfer is output from slave
0 = Write – indicates data transfer is input to slave
Hardware set or clear after reception of I

2

C device address byte.

bit 1

RBF: Receive Buffer Full Status bit 
1 = Receive complete, I2CxRCV is full
0 = Receive not complete, I2CxRCV is empty
Hardware set when I2CxRCV is written with received byte. Hardware clear when software 
reads I2CxRCV.

bit 0

TBF: Transmit Buffer Full Status bit
1 = Transmit in progress, I2CxTRN is full
0 = Transmit complete, I2CxTRN is empty
Hardware set when software writes I2CxTRN. Hardware clear at completion of data transmission.