PIC16C745/P Microchip Technology, PIC16C745/P Datasheet - Page 84

• Manufacturer Part Number: PIC16C745/P
• Description: 8-Bit CMOS Microcontrollers with USB
• Manufacturer: Microchip Technology

PIC16C745/765
TABLE 11-8:
FIGURE 11-6: SYNCHRONOUS TRANSMISSION
FIGURE 11-7: SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
DS41124A-page 84
Address
0Ch
18h
19h
8Ch
98h
99h
Legend: x = unknown, - = unimplemented, read as '0'. Shaded cells are not used for synchronous master transmission.
Note 1: Bits PSPIE and PSPIF are reserved on the PIC16C745; always maintain these bits clear.
RC7/RX/DT pin
RC6/TX/CK pin
TXREG reg
Write to
(Interrupt flag)
TXEN bit
TRMT bit
TXIF bit
TRMT
RC7/RX/DT pin
RC6/TX/CK pin
PIR1
RCSTA
TXREG
PIE1
TXSTA
SPBRG
Name
Q1Q2 Q3Q4 Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2 Q3Q4
’1’
TXREG reg
Note: Sync master mode; SPBRG = ’0’. Continuous transmission of two 8-bit words
TRMT bit
TXEN bit
TXIF bit
Write to
Write word1
REGISTERS ASSOCIATED WITH SYNCHRONOUS MASTER TRANSMISSION
USART Transmit Register
Baud Rate Generator Register
PSPIF
PSPIE
SPEN
CSRC
Bit 7
(1)
(1)
ADIF
ADIE
bit 0
Bit 6
RX9
TX9
Write word2
SREN CREN
TXEN
RCIE
bit 1
WORD 1
RCIF
Bit 5
Advanced Information
bit0
SYNC
Bit 4
TXIF
TXIE
bit 2
USBIF CCP1IF
USBIE CCP1IE
Bit 3
bit1
—
—
Q3Q4 Q1Q2 Q3Q4 Q1Q2 Q3Q4 Q1Q2 Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4
BRGH
FERR
Bit 2
bit 7
bit2
TMR2IE
TMR2IF
OERR
TRMT
Bit 1
bit 0
WORD 2
TMR1IF
TMR1IE
RX9D
TX9D
Bit 0
bit 1
bit6
1999 Microchip Technology Inc.
0000 0000
0000 -00x
0000 0000
0000 0000
0000 -010
0000 0000
Value on:
POR,
BOR
bit7
other Resets
Value on all
0000 0000
0000 -00x
0000 0000
0000 0000
0000 -010
0000 0000
bit 7
’1’