Datasheet

 1999-2013 Microchip Technology Inc. DS39026D-page 119
PIC18CXX2
bit 4 CKP: Clock Polarity Select bit
In SPI mode:
1 = Idle state for clock is a high level
0 = Idle state for clock is a low level
In I
2
C Slave mode:
SCK release control
1 = Enable clock
0 = Holds clock low (clock stretch). (Used to ensure data setup time.)
In I
2
C Master mode:
Unused in this mode
bit 3-0 SSPM3:SSPM0: Synchronous Serial Port Mode Select bits
0000 = SPI Master mode, clock = F
OSC/4
0001 = SPI Master mode, clock = F
OSC/16
0010 = SPI Master mode, clock = F
OSC/64
0011 = SPI Master mode, clock = TMR2 output/2
0100 = SPI Slave mode, clock = SCK pin. SS pin control enabled.
0101 = SPI Slave mode, clock = SCK pin. SS
pin control disabled. SS can be used as I/O pin.
0110 = I
2
C Slave mode, 7-bit address
0111 = I
2
C Slave mode, 10-bit address
1000 = I
2
C Master mode, clock = FOSC / (4 * (SSPADD+1))
1001 = Reserved
1010 = Reserved
1011 = I
2
C firmware controlled Master mode (Slave idle)
1100 = Reserved
1101 = Reserved
1110 = I
2
C Slave mode, 7-bit address with START and STOP bit interrupts enabled
1111 = I
2
C Slave mode, 10-bit address with START and STOP bit interrupts enabled
REGISTER 14-2: SSPCON1: MSSP CONTROL REGISTER1 (CONTINUED)
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
WCOL SSPOV SSPEN CKP SSPM3 SSPM2 SSPM1 SSPM0
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
- n = Value at POR ’1’ = Bit is set ’0’ = Bit is cleared x = Bit is unknown