PIC16F688
TABLE 10-5: REGISTERS ASSOCIATED WITH ASYNCHRONOUS TRANSMISSION
Value on
all other
Resets
Value on
POR, BOD
Addr
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0Ch PIR1
EEIF
ADIF
RCIF
—
C2IF
C1IF
OSFIF
—
TXIF
WUE
TMR1IF 0000 0000 0000 0000
ABDEN 00-0 0-00 00-0 0-00
0000 0000 0000 0000
11h BAUDCTL ABDOVF RCIDL
SCKP BRG16
12h SPBRGH USART Baud Rate High Generator
13h SPBRG
14h RCREG
15h TXREG
16h TXSTA
17h RCSTA
8Ch PIE1
USART Baud Rate Generator
USART Receive Register
USART Transmit Register
0000 0000 0000 0000
0000 0000 0000 0000
0000 0000 0000 0000
CSRC
SPEN
EEIE
TX9
RX9
ADIE
TXEN
SREN
RCIE
SYNC SENDB BRGH
CREN ADDEN FERR
TRMT
OERR
TXIE
TX9D 0000 0010 0000 0010
RX9D 0000 000X 0000 000X
TMR1IE 0000 0000 0000 0000
C2IE
C1IE
OSFIE
Legend:
x= unknown, - = unimplemented locations read as ‘0’. Shaded cells are not used for Asynchronous Transmission.
DS41203B-page 88
Preliminary
2004 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
