PIC16F1946 datasheet(293/478 Pages) MICROCHIP

293 / 478 page

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DS41414D-page 293

PIC16(L)F1946/47

bit 3-0

SSPM<3:0>: Synchronous Serial Port Mode Select bits

0000 = SPI Master mode, clock = FOSC/4

0001 = SPI Master mode, clock = FOSC/16

0010 = SPI Master mode, clock = FOSC/64

0011 = SPI Master mode, clock = TMR2 output/2

0100 = SPI Slave mode, clock = SCKx pin, SSx pin control enabled

0101 = SPI Slave mode, clock = SCKx pin, SSx pin control disabled, SSx can be used as I/O pin

0110 = I2C Slave mode, 7-bit address

0111 = I2C Slave mode, 10-bit address

1000 = I2C Master mode, clock = FOSC / (4 * (SSPxADD+1))(4)

1001 = Reserved

1010 = SPI Master mode, clock = FOSC/(4 * (SSPxADD+1))(5)

1011 = I2C firmware controlled Master mode (Slave idle)

1100 = Reserved

1101 = Reserved

1110 = I2C Slave mode, 7-bit address with Start and Stop bit interrupts enabled

1111 = I2C Slave mode, 10-bit address with Start and Stop bit interrupts enabled

Note 1:

In Master mode, the overflow bit is not set since each new reception (and transmission) is initiated by writing to the

SSPxBUF register.

When enabled, these pins must be properly configured as input or output.

When enabled, the SDAx and SCLx pins must be configured as inputs.

SSPxADD values of 0, 1 or 2 are not supported for I2C Mode.

SSPxADD value of ‘0’ is not supported. Use SSPM = 0000 instead.

SSPxCON1: SSPx CONTROL REGISTER 1 (CONTINUED)

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