Datasheet

 2011-2013 Microchip Technology Inc. DS70000657H-page 277
dsPIC33EPXXXGP50X, dsPIC33EPXXXMC20X/50X AND PIC24EPXXXGP/MC20X
bit 6 STREN: SCLx Clock Stretch Enable bit (when operating as I
2
C slave)
Used in conjunction with the SCLREL bit.
1 = Enables software or receives clock stretching
0 = Disables software or receives clock stretching
bit 5 ACKDT: Acknowledge Data bit (when operating as I
2
C master, applicable during master receive)
Value that is transmitted when the software initiates an Acknowledge sequence.
1 = Sends NACK during Acknowledge
0 = Sends ACK during Acknowledge
bit 4 ACKEN: Acknowledge Sequence Enable bit
(when operating as I
2
C master, applicable during master receive)
1 = Initiates Acknowledge sequence on SDAx and SCLx pins and transmits ACKDT data bit. Hardware
is clear at the end of the master Acknowledge sequence.
0 = Acknowledge sequence is not in progress
bit 3 RCEN: Receive Enable bit (when operating as I
2
C master)
1 = Enables Receive mode for I
2
C. Hardware is clear at the end of the eighth bit of the master receive
data byte.
0 = Receive sequence is not in progress
bit 2 PEN: Stop Condition Enable bit (when operating as I
2
C master)
1 = Initiates Stop condition on SDAx and SCLx pins. Hardware is clear at the end of the master Stop
sequence.
0 = Stop condition is not in progress
bit 1 RSEN: Repeated Start Condition Enable bit (when operating as I
2
C master)
1 = Initiates Repeated Start condition on SDAx and SCLx pins. Hardware is clear at the end of the
master Repeated Start sequence.
0 = Repeated Start condition is not in progress
bit 0 SEN: Start Condition Enable bit (when operating as I
2
C master)
1 = Initiates Start condition on SDAx and SCLx pins. Hardware is clear at the end of the master Start
sequence.
0 = Start condition is not in progress
REGISTER 19-1: I2CxCON: I2Cx CONTROL REGISTER (CONTINUED)
Note 1: When performing master operations, ensure that the IPMIEN bit is set to ‘0’.