Datasheet

PIC17C7XX
DS30289C-page 128  1998-2013 Microchip Technology Inc.
TABLE 14-8: REGISTERS ASSOCIATED WITH SYNCHRONOUS MASTER TRANSMISSION
FIGURE 14-8: SYNCHRONOUS TRANSMISSION
FIGURE 14-9: SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Value on
POR,
BOR
MCLR, WDT
16h, Bank 1 PIR1
RBIF TMR3IF TMR2IF TMR1IF CA2IF CA1IF TX1IF RC1IF x000 0010 u000 0010
17h, Bank 1 PIE1
RBIE TMR3IE TMR2IE TMR1IE CA2IE CA1IE TX1IE RC1IE 0000 0000 0000 0000
13h, Bank 0 RCSTA1 SPEN RX9 SREN CREN
— FERR OERR RX9D 0000 -00x 0000 -00u
16h, Bank 0 TXREG1 TX7 TX6 TX5 TX4 TX3 TX2 TX1 TX0 xxxx xxxx uuuu uuuu
15h, Bank 0 TXSTA1 CSRC TX9 TXEN SYNC
— —TRMTTX9D0000 --1x 0000 --1u
17h, Bank 0 SPBRG1 Baud Rate Generator Register 0000 0000 0000 0000
10h, Bank 4 PIR2
SSPIF BCLIF ADIF — CA4IF CA3IF TX2IF RC2IF 000- 0010 000- 0010
11h, Bank 4 PIE2
SSPIE BCLIE ADIE — CA4IE CA3IE TX2IE RC2IE 000- 0000 000- 0000
13h, Bank 4 RCSTA2 SPEN RX9 SREN CREN
— FERR OERR RX9D 0000 -00x 0000 -00u
16h, Bank 4 TXREG2 TX7 TX6 TX5 TX4 TX3 TX2 TX1 TX0 xxxx xxxx uuuu uuuu
15h, Bank 4 TXSTA2 CSRC TX9 TXEN SYNC
— —TRMTTX9D0000 --1x 0000 --1u
17h, Bank 4 SPBRG2 Baud Rate Generator Register 0000 0000 0000 0000
Legend: x = unknown, u = unchanged, - = unimplemented, read as a '0'. Shaded cells are not used for synchronous master transmission.
Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4 Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q3 Q4
DT
CK
Write to
TXREG
TXIF
Interrupt Flag
TRMT
TXEN
'1'
Write Word 1
Write Word 2
bit0 bit1 bit2 bit7 bit0
Word 1 Word 2
(RX/DT pin)
(TX/CK pin)
DT
CK
Write to
TXREG
TXIF bit
TRMT bit
bit0
bit1
bit2
bit6 bit7
(RX/DT pin)
(TX/CK pin)