DSPIC30F2023 Microchip Technology Inc., DSPIC30F2023 Datasheet - Page 149

• Manufacturer Part Number: DSPIC30F2023
• Description: 28/44-pin Dspic30f1010/202x Enhanced Flash Smps 16-bit Digital Signal Controller
• Manufacturer: Microchip Technology Inc.

FIGURE 13-2:
FIGURE 13-3:
FIGURE 13-4:
© 2006 Microchip Technology Inc.
Note 1:
2:
PROCESSOR 1 (SPI Master)
(MSTEN (SPIxCON1<5>) = 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.
SPI MASTER/SLAVE CONNECTION
SPI MASTER, FRAME MASTER CONNECTION DIAGRAM
SPI MASTER, FRAME SLAVE CONNECTION DIAGRAM
MSb
Serial Transmit Buffer
Serial Receive Buffer
(SPI Slave, Frame Slave)
(SPI Master, Frame Slave)
Shift Register
(SPIxBUF)
(SPIxRXB)
(SPIxTXB)
SPI Buffer
(SPIxSR)
dsPIC33F
dsPIC33F
(2)
LSb
SDOx
SCKx
SDOx
SCKx
SDOx
SDIx
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)
dsPIC30F1010/202X
SDIx
SDOx
SCKx
SSx
SDIx
SDOx
SCKx
SSx
SDIx
SDOx
SCKx
SSx
(1)
PROCESSOR 2 (SPI Slave)
MSb
Serial Receive Buffer
Serial Transmit Buffer
PROCESSOR 2
PROCESSOR 2
Shift Register
(SPIxBUF)
(SPIxRXB)
(SPIxTXB)
SPI Buffer
(SPIxSR)
(2)
LSb
DS70178C-page 147