PIC16C63-20/TQ Microchip Technology, PIC16C63-20/TQ Datasheet - Page 117

• Manufacturer Part Number: PIC16C63-20/TQ
• Description: 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

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TABLE 12-8:
FIGURE 12-12: SYNCHRONOUS TRANSMISSION
FIGURE 12-13: SYNCHRONOUS TRANSMISSION THROUGH TXEN
Address
0Ch
18h
19h
8Ch
98h
99h
Legend: x = unknown, - = unimplemented locations read as '0'. Shaded cells are not used for Synchronous Master Transmission.
Note 1: PSPIE and PSPIF are reserved on the PIC16C63/R63/66, always maintain these bits clear.
RC7/RX/DT pin
RC6/TX/CK pin
TXREG reg
Write to
1997 Microchip Technology Inc.
(Interrupt flag)
TXEN bit
TRMT bit
TXIF bit
2: PIE1<6> and PIR1<6> are reserved, always maintain these bits clear.
TRMT
RC7/RX/DT pin
RC6/TX/CK pin
Name
PIR1
RCSTA
TXREG
PIE1
TXSTA
SPBRG
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
Write to
TXIF bit
Write word1
REGISTERS ASSOCIATED WITH SYNCHRONOUS MASTER TRANSMISSION
USART Transmit Register
Baud Rate Generator Register
PSPIF
PSPIE
SPEN
CSRC
Bit 7
(1)
(1)
Bit 0
Bit 6
RX9
TX9
(2)
(2)
Write word2
SREN CREN
TXEN
WORD 1
RCIF
RCIE
Bit 5
Bit 1
bit0
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SYNC
Bit 4
TXIF
TXIE
Bit 2
SSPIF
SSPIE
Bit 3
bit1
—
—
Q3Q4 Q1Q2 Q3Q4 Q1Q2 Q3Q4 Q1Q2 Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4
CCP1IF
CCP1IE
BRGH
FERR
Bit 2
Bit 7
bit2
TMR2IF
TMR2IE
OERR
TRMT
Bit 1
Bit 0
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WORD 2
TMR1IE
TMR1IF
Bit 1
RX9D
TX9D
Bit 0
bit6
PIC16C6X
0000 0000
0000 -00x
0000 0000
0000 0000
0000 -010
0000 0000
Value on
POR,
BOR
bit7
DS30234D-page 117
0000 0000
0000 -00x
0000 0000
0000 0000
0000 -010
0000 0000
Value on
all other
Resets
Bit 7
'1'
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