PIC16F747 Microchip Technology Inc., PIC16F747 Datasheet - Page 147

• Manufacturer Part Number: PIC16F747
• Description: 28/40/44-pin, 8-bit Cmos Flash Microcontrollers With 10-bit A/d And Nanowatt Technology
• Manufacturer: Microchip Technology Inc.

TABLE 11-10: REGISTERS ASSOCIATED WITH SYNCHRONOUS MASTER TRANSMISSION
FIGURE 11-9:
FIGURE 11-10:
 2004 Microchip Technology Inc.
0Bh, 8Bh,
10Bh,18Bh
0Ch
18h
19h
8Ch
98h
99h
Legend:
Note 1:
Address
RC7/RX/DT
pin
RC6/TX/CK
pin
Write to
TXREG Reg
TXIF bit
(Interrupt Flag)
TRMT bit
TXEN bit
Note: Sync Master mode, SPBRG = 0. Continuous transmission of two 8-bit words.
RC7/RX/DT pin
RC6/TX/CK pin
Q1Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1Q2Q3 Q4Q1Q2 Q3 Q4Q1 Q2 Q3 Q4
x = unknown, — = unimplemented, read as ‘0’. Shaded cells are not used for synchronous master transmission.
Bits PSPIE and PSPIF are reserved on 28-pin devices; always maintain these bits clear.
TXREG Reg
‘1’
INTCO
N
PIR1
RCSTA
TXREG
PIE1
TXSTA
SPBRG
Name
TRMT bit
TXEN bit
TXIF bit
Write to
Write Word 1
AUSART Transmit Register
Baud Rate Generator Register
PSPIF
PSPIE
SYNCHRONOUS TRANSMISSION
SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
CSRC
SPEN
Bit 7
GIE
(1)
(1)
bit 0
ADIE
PEIE
ADIF
Bit 6
RX9
TX9
Write Word 2
bit 1
Word 1
TMR0IE INT0IE
SREN
TXEN
RCIE
RCIF
Bit 5
bit 0
bit 2
CREN ADDEN
SYNC
Bit 4
TXIF
TXIE
bit 1
SSPIE
SSPIF
RBIE
Bit 3
—
Q3 Q4 Q1 Q2 Q3Q4 Q1Q2 Q3 Q4 Q1 Q2Q3 Q4Q1 Q2 Q3 Q4 Q1Q2 Q3 Q4 Q1 Q2 Q3 Q4
bit 7
TMR0IF
CCP1IF TMR2IF TMR1IF 0000 0000 0000 0000
CCP1IE TMR2IE TMR1IE 0000 0000 0000 0000
bit 2
BRGH
FERR
Bit 2
bit 0
INT0IF
OERR
TRMT
Bit 1
Word 2
bit 1
bit 6
RX9D
TX9D
RBIF
Bit 0
PIC16F7X7
0000 000x 0000 000u
0000 000x 0000 000x
0000 0000 0000 0000
0000 -010 0000 -010
0000 0000 0000 0000
POR, BOR
Value on:
bit 7
DS30498C-page 145
Value on
all other
Resets
bit 7
‘1’