PIC24FV16KM204 Datasheet, PDF (166/336 Pages) Microchip Technology – General Purpose, 16-Bit Flash Microcontroller with XLP Technology Data Sheet

PIC24FV16KM204 FAMILY
REGISTER 14-4: SSPxCON1: MSSPx CONTROL REGISTER 1 (I²C™ MODE)
U-0
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
—
bit 15
U-0
—
bit 8
R/W-0
WCOL
bit 7
R/W-0
SSPOV
R/W-0
SSPEN⁽¹⁾
R/W-0
CKP
R/W-0
SSPM3⁽²⁾
R/W-0
SSPM2⁽²⁾
R/W-0
SSPM1⁽²⁾
R/W-0
SSPM0⁽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 15-8
bit 7
bit 6
bit 5
bit 4
bit 3-0
Unimplemented: Read as ‘0’
WCOL: Write Collision Detect bit
In Master Transmit mode:
1 = A write to the SSPxBUF 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 SSPxBUF 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: Master Synchronous Serial Port Receive Overflow Indicator bit
In Receive mode:
1 = A byte is received while the SSPxBUF 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: Master Synchronous Serial Port Enable bit⁽¹⁾
1 = Enables the serial port and configures the SDAx and SCLx pins as the serial port pins
0 = Disables the serial port and configures these pins as I/O port pins
CKP: SCLx Release Control bit
In Slave mode:
1 = Releases clock
0 = Holds clock low (clock stretch), used to ensure data setup time
In Master mode:
Unused in this mode.
SSPM<3:0>: Master Synchronous Serial Port Mode Select bits⁽²⁾
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/(2 * ([SSPxADD] + 1))⁽³⁾
0111 = I²C Slave mode, 10-bit address
0110 = I²C Slave mode, 7-bit address
Note 1:
2:
3:
When enabled, the SDAx and SCLx pins must be configured as inputs.
Bit combinations not specifically listed here are either reserved or implemented in SPI mode only.
SSPxADD values of 0, 1 or 2 are not supported when the Baud Rate Generator is used with I²C mode.
DS33030A-page 166
Advance Information
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