DVR datasheet(205/416 Pages) MICROCHIP

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DS30010118D-page 205

PIC24FJ256GA705 FAMILY

bit 8

CKE: SPIx Clock Edge Select bit(1)

1 = Transmit happens on transition from active clock state to Idle clock state

0 = Transmit happens on transition from Idle clock state to active clock state

bit 7

SSEN: Slave Select Enable bit (Slave mode)(2)

1 = SSx pin is used by the macro in Slave mode; SSx pin is used as the slave select input

0 = SSx pin is not used by the macro (SSx pin will be controlled by the port I/O)

bit 6

CKP: SPIx Clock Polarity Select bit

1 = Idle state for clock is a high level; active state is a low level

0 = Idle state for clock is a low level; active state is a high level

bit 5

MSTEN: Master Mode Enable bit

1 = Master mode

0 = Slave mode

bit 4

DISSDI: Disable SDIx Input Port bit

1 = SDIx pin is not used by the module; pin is controlled by the port function

0 = SDIx pin is controlled by the module

bit 3

DISSCK: Disable SCKx Output Port bit

1 = SCKx pin is not used by the module; pin is controlled by the port function

0 = SCKx pin is controlled by the module

bit 2

MCLKEN: Master Clock Enable bit(3)

1 = MCLK is used by the BRG(5)

0 = Peripheral Clock is used by the BRG

bit 1

SPIFE: Frame Sync Pulse Edge Select bit

1 = Frame Sync pulse (Idle-to-active edge) coincides with the first bit clock

0 = Frame Sync pulse (Idle-to-active edge) precedes the first bit clock

bit 0

ENHBUF: Enhanced Buffer Mode Enable bit

1 = Enhanced Buffer mode is enabled

0 = Enhanced Buffer mode is disabled

SPIxCON1L: SPIx CONTROL REGISTER 1 LOW (CONTINUED)

Note 1:

When AUDEN = 1, this module functions as if CKE = 0, regardless of its actual value.

When FRMEN = 1, SSEN is not used.

MCLKEN can only be written when the SPIEN bit = 0.

4: This channel is not meaningful for DSP/PCM mode as LRC follows the FRMSYPW bit.

The MCLK source is the REFO clock.

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