PIC16F628-20P Datasheet, PDF (53/170 Pages) Microchip Technology – FLASH-Based 8-Bit CMOS Microcontroller

PIC16F62X
REGISTER 8-1: T2CON: TIMER CONTROL REGISTER (ADDRESS: 12h)
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0 R/W-0 R/W-0
—
TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON T2CKPS1 T2CKPS0
bit 7
bit 0
bit 7
bit 6-3
bit 2
bit 1-0
Unimplemented: Read as '0'
TOUTPS3:TOUTPS0: Timer2 Output Postscale Select bits
0000 = 1:1 Postscale Value
0001 = 1:2 Postscale Value
•
•
•
1111 = 1:16 Postscale
TMR2ON: Timer2 On bit
1 = Timer2 is on
0 = Timer2 is off
T2CKPS1:T2CKPS0: Timer2 Clock Prescale Select bits
00 = 1:1 Prescaler Value
01 = 1:4 Prescaler Value
1x = 1:16 Prescaler Value
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
’1’ = Bit is set
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared x = Bit is unknown
TABLE 8-1: REGISTERS ASSOCIATED WITH TIMER2 AS A TIMER/COUNTER
Address Name Bit 7
Bit 6
Bit 5
Bit 4
Bit 3 Bit 2 Bit 1
Bit 0
Value on
POR
Value on
all other
RESETS
0Bh/8Bh/ INTCON GIE
10Bh/18Bh
PEIE
T0IE
INTE
RBIE
T0IF
INTF
RBIF ^{0000 000x 0000 000u}
0Ch
PIR1
EEIF
CMIF
RCIF
TXIF
—
CCP1IF TMR2IF TMR1IF ^{0000 -000 0000 -000}
8Ch
PIE1
EEIE
CMIE
RCIE
TXIE
—
CCP1IE TMR2IE TMR1IE ^{0000 -000 0000 -000}
11h
TMR2 Timer2 module’s register
0000 0000 0000 0000
12h
T2CON
—
TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON T2CKPS1 T2CKPS0 ^{-000 0000 -000 0000}
92h
PR2
Timer2 Period Register
1111 1111 1111 1111
Legend: x = unknown, u = unchanged, - = unimplemented read as '0'. Shaded cells are not used by the Timer2 module.
 2003 Microchip Technology Inc.
Preliminary
DS40300C-page 51