PIC16F737-I Datasheet, PDF (106/276 Pages) Microchip Technology – 28/40/44-Pin, 8-Bit CMOS Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC16F7X7
REGISTER 10-4:
SSPCON: MSSP CONTROL (I²C MODE) REGISTER 1 (ADDRESS 14h)
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
bit 7
R/W-0
SSPM0
bit 0
bit 7
bit 6
bit 5
bit 4
bit 3-0
WCOL: Write Collision Detect bit
In Master Transmit mode:
1 = A write to the SSPBUF register was attempted while the I²C conditions were not valid for
a transmission to be started (must be cleared in software)
0 = No collision
In Slave Transmit mode:
1 = The SSPBUF register is written while it is still transmitting the previous word (must be
cleared in software)
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 be
cleared in software)
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
Note: When enabled, the SDA and SCL pins must be properly configured as input or output.
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.
SSPM3:SSPM0: Synchronous Serial Port Mode Select bits
1111 = I²C Slave mode, 10-bit address with Start and Stop bit interrupts enabled
1110 = I²C Slave mode, 7-bit address with Start and Stop bit interrupts enabled
1011 = I²C Firmware Controlled Master mode (slave Idle)
1000 = I²C Master mode, clock = FOSC/(4 * (SSPADD + 1))
0111 = I²C Slave mode, 10-bit address
0110 = I²C Slave mode, 7-bit address
Note: Bit combinations not specifically listed here are either reserved or implemented in
SPI mode only.
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
DS30498C-page 104
 2004 Microchip Technology Inc.