Datasheet

PIC32MX5XX/6XX/7XX
DS60001156H-page 220  2009-2013 Microchip Technology Inc.
bit 7 GCEN: General Call Enable bit (when operating as I
2
C slave)
1 = Enable interrupt when a general call address is received in the I2CxRSR
(module is enabled for reception)
0 = General call address disabled
bit 6 STREN: SCLx Clock Stretch Enable bit (when operating as I
2
C slave)
Used in conjunction with SCLREL bit.
1 = Enable software or receive clock stretching
0 = Disable software or receive 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 = Send NACK during an acknowledge
0 = Send ACK during an acknowledge
bit 4 ACKEN: Acknowledge Sequence Enable bit (when operating as I
2
C master, applicable during master
receive)
1 = Initiate Acknowledge sequence on SDAx and SCLx pins and transmit ACKDT data bit.
Hardware clear at end of master Acknowledge sequence.
0 = Acknowledge sequence 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 clear at end of eighth bit of master receive data byte.
0 = Receive sequence not in progress
bit 2 PEN: Stop Condition Enable bit (when operating as I
2
C master)
1 = Initiate Stop condition on SDAx and SCLx pins. Hardware clear at end of master Stop sequence.
0 = Stop condition not in progress
bit 1 RSEN: Repeated Start Condition Enable bit (when operating as I
2
C master)
1 = Initiate Repeated Start condition on SDAx and SCLx pins. Hardware clear at end of 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 = Initiate Start condition on SDAx and SCLx pins. Hardware clear at end of master Start sequence.
0 = Start condition is not in progress
REGISTER 18-1: I2CXCON: I
2
C™ CONTROL REGISTER (CONTINUED)
Note 1: When using the 1:1 PBCLK divisor, the user’s software should not read/write the peripheral’s SFRs in the
SYSCLK cycle immediately following the instruction that clears the module’s ON bit.