PIC18F24 MICROCHIP [Microchip Technology], PIC18F24 Datasheet - Page 156

• Manufacturer Part Number: PIC18F24
• Description: 28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module
• Manufacturer: MICROCHIP [Microchip Technology]

REGISTER 17-4:
DS41159D-page 154
PIC18FXX8
bit 7
bit 6
bit 5
bit 4
bit 3-0 SSPM3:SSPM0: Synchronous Serial Port Mode Select bits
SSPCON1: MSSP CONTROL REGISTER 1 (I
bit 7
WCOL: Write Collision Detect bit
In Master Transmit mode:
1 = A write to the SSPBUF register was attempted while the I
0 = No collision
In Slave Transmit mode:
1 = The SSPBUF register is written while it is still transmitting the previous word (must be
0 = No collision
In Receive mode (Master or Slave modes):
This is a “don’t care” bit.
SSPOV: Receive Overflow Indicator bit
In Receive mode:
1 = A byte is received while the SSPBUF register is still holding the previous byte (must
0 = No overflow
In Transmit mode:
This is a “don’t care” bit in Transmit mode.
SSPEN: Synchronous Serial Port Enable bit
1 = Enables the serial port and configures the SDA and SCL pins as the serial port pins
0 = Disables serial port and configures these pins as I/O port pins
CKP: SCK Release Control bit
In Slave mode:
1 = Release clock
0 = Holds clock low (clock stretch), used to ensure data setup time
In Master mode:
Unused in this mode.
1111 = I
1110 = I
1011 = I
1000 = I
0111 = I
0110 = I
Legend:
R = Readable bit
-n = Value at POR
WCOL
R/W-0
Note:
Note:
a transmission to be started (must be cleared in software)
cleared in software)
be cleared in software)
2
2
2
2
2
2
C Slave mode, 10-bit address with Start and Stop bit interrupts enabled
C Slave mode, 7-bit address with Start and Stop bit interrupts enabled
C Firmware Controlled Master mode (Slave Idle)
C Master mode, clock = F
C Slave mode, 10-bit address
C Slave mode, 7-bit address
When enabled, the SDA and SCL pins must be properly configured as input or output.
Bit combinations not specifically listed here are either reserved or implemented in
SPI mode only.
SSPOV
R/W-0
W = Writable bit
‘1’ = Bit is set
SSPEN
R/W-0
OSC
R/W-0
CKP
/(4 * (SSPADD + 1))
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
SSPM3
R/W-0
2
C MODE)
SSPM2
2
R/W-0
C conditions were not valid for
 2004 Microchip Technology Inc.
x = Bit is unknown
SSPM1
R/W-0
SSPM0
R/W-0
bit 0