PIC16C773 Microchip Technology, PIC16C773 Datasheet - Page 46
PIC16C773
Manufacturer Part Number
PIC16C773
Description
28/40-Pin/ 8-Bit CMOS Microcontrollers w/ 12-Bit A/D
Manufacturer
Microchip Technology
Datasheet
1.PIC16C773.pdf
(200 pages)
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TABLE 6-1
PIC16C77X
6.2
The Timer2 module has an 8-bit period register PR2.
Timer2 increments from 00h until it matches PR2 and
then resets to 00h on the next increment cycle. PR2 is
a readable and writable register. The PR2 register is ini-
tialized to FFh upon reset.
6.3
The output of TMR2 (before the postscaler) is fed to the
Synchronous Serial Port module which optionally uses
it to generate shift clock.
DS30275A-page 46
Address
0Bh,8Bh,
10Bh,18Bh
0Ch
8Ch
11h
12h
92h
Legend:
Note 1:
Timer2 Interrupt
Output of TMR2
These bits are reserved on the 28-pin, always maintain these bits clear.
x = unknown, u = unchanged, - = unimplemented read as '0'. Shaded cells are not used by the Timer2 module.
Name
INTCON
PIR1
PIE1
TMR2
T2CON
PR2
REGISTERS ASSOCIATED WITH TIMER2 AS A TIMER/COUNTER
Timer2 module’s register
Timer2 Period Register
PSPIF
PSPIE
Bit 7
GIE
—
(1)
(1)
TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON T2CKPS1 T2CKPS0 -000 0000 -000 0000
PEIE
ADIE
Bit 6
ADIF
RCIF
RCIE
Bit 5
T0IE
Advance Information
INTE
TXIE
Bit 4
TXIF
SSPIE
SSPIF
RBIE
Bit 3
FIGURE 6-2:
Note 1: TMR2 register output can be software selected
Sets flag
bit TMR2IF
CCP1IF
CCP1IE
1:1
Postscaler
Bit 2
T0IF
to
by the SSP Module as a baud clock.
1:16
4
TMR2
output
TMR2IF
TMR2IE
Reset
Bit 1
INTF
EQ
TIMER2 BLOCK DIAGRAM
(1)
Comparator
TMR2 reg
PR2 reg
TMR1IE
TMR1IF
RBIF
Bit 0
1999 Microchip Technology Inc.
0000 000x 0000 000u
0000 0000 0000 0000
0000 0000 0000 0000
0000 0000 0000 0000
1111 1111 1111 1111
Value on:
1:1, 1:4, 1:16
POR,
BOR
Prescaler
2
Value on
all other
resets
F
OSC
/4
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