Microchip Technology MA240017 Data Sheet

 2008-2011 Microchip Technology Inc.

DS39927C-page 145

bit 3

 Start bit 

1

 = Indicates that a Start (or Repeated Start) bit has been detected last

0

 = Start bit was not detected last

Hardware is set or clear when Start, Repeated Start or Stop is detected.

bit 2

 Read/Write Information bit (when operating as I

2

C slave)

1

 = Read – indicates the data transfer is output from slave

0

 = Write – indicates the data transfer is input to slave

Hardware is set or clear after reception of I

2

C device address byte.

bit 1

 Receive Buffer Full Status bit 

1

 = Receive complete, I2C1RCV is full

0

 = Receive not complete, I2C1RCV is empty

Hardware is set when I2C1RCV is written with received byte; hardware is clear when software reads I2C1RCV.

bit 0

 Transmit Buffer Full Status bit

1

 = Transmit in progress, I2C1TRN is full

0

 = Transmit complete, I2C1TRN is empty

Hardware is set when software writes to I2C1TRN; hardware is clear at completion of data transmission.