pic24hj16gp304 Microchip Technology Inc., pic24hj16gp304 Datasheet - Page 137

• Manufacturer Part Number: pic24hj16gp304
• Description: High-performance, 16-bit Microcontrollers
• Manufacturer: Microchip Technology Inc.

FIGURE 14-2:
FIGURE 14-3:
FIGURE 14-4:
© 2007 Microchip Technology Inc.
Note 1:
PIC24HJ32GP202/204 and PIC24HJ16GP304
2:
PROCESSOR 1 (SPI Master)
(MSTEN (SPIxCON1<5>) = 1)
Using the SSx pin in Slave mode of operation is optional.
User application must write transmit data to read received data from SPIxBUF. The SPIxTXB and SPIxRXB registers
are memory mapped to SPIxBUF.
SPI MASTER/SLAVE CONNECTION
SPI MASTER AND FRAME MASTER CONNECTION DIAGRAM
SPI MASTER AND FRAME SLAVE CONNECTION DIAGRAM
MSb
Serial Receive Buffer
Serial Transmit Buffer
Shift Register
(SPIxBUF)
(SPIxRXB)
(SPIxTXB)
SPI Buffer
(SPIxSR)
PIC24H
PIC24H
(2)
LSb
SDOx
SCKx
SDOx
SCKx
SDIx
SDOx
SDIx
SCKx
SSx
SDIx
SSx
Preliminary
Serial Clock
Serial Clock
Frame Sync
Pulse
Serial Clock
Frame Sync
Pulse
(SSEN (SPIxCON1<7>) = 1 and MSTEN (SPIxCON1<5>) = 0)
SDIx
SDOx
SCKx
SSx
SDIx
SDOx
SCKx
SSx
SDIx
SDOx
SCKx
SSx
(1)
PROCESSOR 2 (SPI Slave)
MSb
Serial Transmit Buffer
Serial Receive Buffer
PROCESSOR 2
PROCESSOR 2
Shift Register
(SPIxBUF)
(SPIxRXB)
(SPIxTXB)
SPI Buffer
(SPIxSR)
(2)
LSb
DS70289A-page 135