PIC18F87K90 Datasheet, PDF (314/566 Pages) Microchip Technology – 64/80-Pin, High-Performance Microcontrollers with LCD Driver and nanoWatt XLP Technology

PIC18F87K90 FAMILY
REGISTER 21-5: SSPxCON2: MSSPx CONTROL REGISTER 2 (I²C™ MASTER MODE)
R/W-0
GCEN
R/W-0
ACKSTAT
R/W-0
ACKDT⁽¹⁾
R/W-0
ACKEN⁽²⁾
R/W-0
RCEN⁽²⁾
R/W-0
PEN⁽²⁾
R/W-0
RSEN⁽²⁾
bit 7
R/W-0
SEN⁽²⁾
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
GCEN: General Call Enable bit
Unused in Master mode.
bit 6
ACKSTAT: Acknowledge Status bit (Master Transmit mode only)
1 = Acknowledge was not received from slave
0 = Acknowledge was received from slave
bit 5
ACKDT: Acknowledge Data bit (Master Receive mode only)⁽¹⁾
1 = Not Acknowledge
0 = Acknowledge
bit 4
ACKEN: Acknowledge Sequence Enable bit⁽²⁾
1 = Initiates Acknowledge sequence on SDAx and SCLx pins and transmits ACKDT data bit;
automatically cleared by hardware
0 = Acknowledge sequence is Idle
bit 3
RCEN: Receive Enable bit (Master Receive mode only)⁽²⁾
1 = Enables Receive mode for I²C
0 = Receive is Idle
bit 2
PEN: Stop Condition Enable bit⁽²⁾
1 = Initiates Stop condition on SDAx and SCLx pins; automatically cleared by hardware
0 = Stop condition is Idle
bit 1
RSEN: Repeated Start Condition Enable bit⁽²⁾
1 = Initiates Repeated Start condition on SDAx and SCLx pins; automatically cleared by hardware
0 = Repeated Start condition is Idle
bit 0
SEN: Start Condition Enable bit⁽²⁾
1 = Initiates Start condition on SDAx and SCLx pins; automatically cleared by hardware
0 = Start condition is Idle
Note 1: Value that will be transmitted when the user initiates an Acknowledge sequence at the end of a receive.
2: If the I²C module is active, these bits may not be set (no spooling) and the SSPxBUF may not be written
(or writes to the SSPxBUF are disabled).
DS39957B-page 314
Preliminary
 2010 Microchip Technology Inc.