PIC16F7X Datasheet, PDF (54/174 Pages) Microchip Technology – 28/40-Pin 8-Bit CMOS FLASH Microcontrollers

PIC16F7X
REGISTER 7-1:
T2CON: TIMER2 CONTROL REGISTER (ADDRESS 12h)
U-0
—
bit 7
R/W-0
R/W-0
TOUTPS3 TOUTPS2
R/W-0
TOUTPS1
R/W-0 R/W-0 R/W-0 R/W-0
TOUTPS0 TMR2ON T2CKPS1 T2CKPS0
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
0001 = 1:2 Postscale
0010 = 1:3 Postscale
•
•
•
1111 = 1:16 Postscale
TMR2ON: Timer2 On bit
1 = Timer2 is on
0 = Timer2 is off
T2CKPS1:T2CKPS0: Timer2 Clock Prescale Select bits
00 = Prescaler is 1
01 = Prescaler is 4
1x = Prescaler is 16
Legend:
R = Readable bit
- n = Value at POR reset
W = Writable bit
’1’ = Bit is set
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared x = Bit is unknown
TABLE 7-1: 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,
BOR
Value on
all other
RESETS
0Bh,8Bh, INTCON GIE
10Bh, 18Bh
0Ch
PIR1 PSPIF⁽¹⁾
8Ch
PIE1 PSPIE⁽¹⁾
PEIE
ADIF
ADIE
TMR0IE
RCIF
RCIE
INTE
TXIF
TXIE
RBIE TMR0IF INTF
RBIF ^{0000 000x 0000 000u}
SSPIF CCP1IF TMR2IF TMR1IF ^{0000 0000 0000 0000}
SSPIE CCP1IE TMR2IE TMR1IE ^{0000 0000 0000 0000}
11h
TMR2 Timer2 Module 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.
Note 1: Bits PSPIE and PSPIF are reserved on the PIC16F73/76; always maintain these bits clear.
DS30325B-page 52
 2002 Microchip Technology Inc.