Microchip Technology DM164134 数据表
PIC18FXX8
DS41159E-page 194
© 2006 Microchip Technology Inc.
FIGURE 18-6:
SYNCHRONOUS TRANSMISSION
FIGURE 18-7:
SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
bit 0
bit 1
bit 7
Word 1
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
bit 2
bit 0
bit 1
bit 7
RC7/RX/DT
RC6/TX/CK
Write to
TXREG Reg
TXIF bit
(Interrupt Flag)
(Interrupt Flag)
TRMT
TXEN bit
‘1’
‘1’
Note: Sync Master mode; SPBRG = 0; continuous transmission of two 8-bit words.
Word 2
TRMT bit
Write Word 1
Write Word 2
pin
pin
Q3
RC7/RX/DT pin
RC6/TX/CK pin
Write to
TXREG Reg
TXIF bit
TRMT bit
bit 0
bit 1
bit 2
bit 6
bit 7
TXEN bit