PIC24HJ128GP310 datasheet(149/286 Pages) MICROCHIP

149 / 286 page

DS70175F-page 147

PIC24HJXXXGPX06/X08/X10

FIGURE 15-2:

SPI MASTER/SLAVE CONNECTION

FIGURE 15-3:

SPI MASTER, FRAME MASTER CONNECTION DIAGRAM

FIGURE 15-4:

SPI MASTER, FRAME SLAVE CONNECTION DIAGRAM

Serial Receive Buffer

(SPIxRXB)

LSb

MSb

SDIx

SDOx

PROCESSOR 2 (SPI Slave)

SCKx

SSx(1)

Serial Transmit Buffer

(SPIxTXB)

Serial Receive Buffer

(SPIxRXB)

Shift Register

(SPIxSR)

MSb

LSb

SDOx

SDIx

PROCESSOR 1 (SPI Master)

Serial Clock

(SSEN (SPIxCON1<7>) = 1 and MSTEN (SPIxCON1<5>) = 0)

Note 1:

Using the SSx pin in Slave mode of operation is optional.

User must write transmit data to/read received data from SPIxBUF. The SPIxTXB and SPIxRXB registers are memory

mapped to SPIxBUF.

SCKx

Serial Transmit Buffer

(SPIxTXB)

(MSTEN (SPIxCON1<5>) = 1)

SPI Buffer

(SPIxBUF)(2)

SPI Buffer

(SPIxBUF)(2)

Shift Register

(SPIxSR)

SDOx

SDIx

PIC24H

Serial Clock

SSx

SCKx

Frame Sync

Pulse

SDIx

SDOx

PROCESSOR 2

SSx

SCKx

SDOx

SDIx

PIC24H

Serial Clock

SSx

SCKx

Frame Sync

Pulse

SDIx

SDOx

PROCESSOR 2

SSx

SCKx

PIC24HJ128GP310 Datasheet(PDF) 149 Page - Microchip Technology

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