PIC16C63A Microchip Technology, PIC16C63A Datasheet - Page 44

• Manufacturer Part Number: PIC16C63A
• Description: 28/40-Pin 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

PIC16C63A/65B/73B/74B
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.
TABLE 6-1:
DS30605A-page 44
Address
0Bh,8Bh
0Ch
8Ch
11h
12h
92h
Legend: x = unknown, u = unchanged, - = unimplemented read as '0'. Shaded cells are not used by the Timer2
Note 1:
Timer2 Interrupt
Output of TMR2
These bits are reserved, maintain as '0'.
Name
INTCON
PIR1
PIE1
TMR2
T2CON
PR2
module.
REGISTERS ASSOCIATED WITH TIMER2 AS A TIMER/COUNTER
Timer2 module’s register
Timer2 Period Register
Bit 7
GIE
(1)
(1)
—
TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON T2CKPS1 T2CKPS0 -000 0000 -000 0000
PEIE
ADIF
ADIE
Bit 6
Bit 5
T0IE
(1)
(1)
INTE
Bit 4
(1)
(1)
SSPIF
SSPIE
RBIE
Bit 3
FIGURE 6-2:
Note 1: TMR2 register output can be software selected
Sets flag
bit TMR2IF
CCP1IF
CCP1IE
Postscaler
1:1
Bit 2
T0IF
to
by the SSP Module as a baud clock.
1:16
4
TMR2
output
TMR2IF
TMR2IE
Reset
INTF
Bit 1
EQ
TIMER2 BLOCK DIAGRAM
(1)
Comparator
TMR2 reg
PR2 reg
TMR1IF
TMR1IE
RBIF
Bit 0
1998 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