PIC24F16KA102_11 Datasheet, PDF (145/278 Pages) Microchip Technology – 20/28-Pin General Purpose, 16-Bit Flash Microcontrollers with nanoWatt XLP Technology

PIC24F16KA102 FAMILY
REGISTER 17-2: I2C1STAT: I2C1 STATUS REGISTER (CONTINUED)
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 is set or clear when Start, Repeated Start or Stop is detected.
bit 2
R/W: Read/Write Information bit (when operating as I²C 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 I²C device address byte.
bit 1
RBF: 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
TBF: 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.
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DS39927C-page 145