Microchip Technology IC PIC MCU PIC16F1937-I/PT TQFP-44 MCP PIC16F1937-I/PT Data Sheet
Product codes
PIC16F1937-I/PT
2008-2011 Microchip Technology Inc.
DS41364E-page 247
PIC16(L)F1934/6/7
FIGURE 24-7:
SPI DAISY-CHAIN CONNECTION
FIGURE 24-8:
SLAVE SELECT SYNCHRONOUS WAVEFORM
SPI Master
SCK
SDO
SDI
General I/O
SCK
SDI
SDO
SS
SDI
SDO
SS
SPI Slave
#1
SCK
SDI
SDO
SS
SDI
SDO
SS
SPI Slave
#2
SCK
SDI
SDO
SS
SDI
SDO
SS
SPI Slave
#3
SCK
(CKP = 1
SCK
(CKP = 0
Input
Sample
SDI
bit 7
SDO
bit 7
bit 6
bit 7
SSPIF
Interrupt
CKE = 0)
CKE = 0)
Write to
SSPBUF
SSPSR to
SSPBUF
SS
Flag
bit 0
bit 7
bit 0
bit 6
SSPBUF to
SSPSR
Shift register SSPSR
and bit count are reset