
2005 Microchip Technology Inc.
DS39612B-page 139
PIC18F6525/6621/8525/8621
TABLE 12-2:
REGISTERS ASSOCIATED WITH TIMER1 AS A TIMER/COUNTER
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR, BOR
Value on
all other
Resets
INTCON
GIE/GIEH PEIE/GIEL
TMR0IE
INT0IE
RBIE
TMR0IF
INT0IF
RBIF
0000 000x 0000 000u
PIR1
PSPIF(1)
ADIF
RC1IF
TX1IF
SSPIF
CCP1IF
TMR2IF
TMR1IF
0000 0000 0000 0000
PIE1
PSPIE(1)
ADIE
RC1IE
TX1IE
SSPIE
CCP1IE
TMR2IE
TMR1IE
0000 0000 0000 0000
IPR1
PSPIP(1)
ADIP
RC1IP
TX1IP
SSPIP
CCP1IP
TMR2IP
TMR1IP
1111 1111 1111 1111
TMR1L
Timer1 Register Low Byte
xxxx xxxx uuuu uuuu
TMR1H
Timer1 Register High Byte
xxxx xxxx uuuu uuuu
T1CON
RD16
—
T1CKPS1 T1CKPS0 T1OSCEN T1SYNC TMR1CS TMR1ON 0-00 0000 u-uu uuuu
Legend:
x
= unknown, u = unchanged, — = unimplemented, read as ‘0’. Shaded cells are not used by the Timer1 module.
Note
1:
Enabled only in Microcontroller mode for PIC18F8525/8621 devices.