PIC12F683-I/MD Microchip Technology Inc., PIC12F683-I/MD Datasheet - Page 48

• Manufacturer Part Number: PIC12F683-I/MD
• Description: 8 PIN, 3.5KB FLASH, 128 RAM, 6 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC12F683-I/MD

• A/d Inputs: 4-Channel, 10-Bit
• Comparators: 1
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Frequency: 20 MHz
• Input Output: 6
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 8-Pin PDIP
• Programmable Memory: 3.5K Bytes
• Ram Size: 128 Bytes
• Serial Interface: None
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC12F683
7.2
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
initialized to FFh upon Reset.
FIGURE 7-1:
TABLE 7-1:
DS41211B-page 46
0Bh/
8Bh
0Ch
11h
12h
8Ch
92h
Legend:
Addr
INTCON
PIR1
TMR2
T2CON
PIE1
PR2
Name
Timer2 Interrupt
F
x = unknown, u = unchanged, — = unimplemented, read as ‘0’. Shaded cells are not used by the Timer2 module.
OSC
/4
Holding Register for the 8-bit TMR2 Register
Timer2 Module Period Register
EEIE
Bit 7
EEIF
GIE
REGISTERS ASSOCIATED WITH TIMER2
—
TIMER2 BLOCK DIAGRAM
TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON T2CKPS1 T2CKPS0 -000 0000 -000 0000
PEIE
ADIF
ADIE
Bit 6
1:1, 1:4, 1:16
Prescaler
T2CKPS<1:0>
CCP1IF
CCP1IE
2
Bit 5
T0IE
INTE
Bit 4
—
—
Comparator
Preliminary
TMR2
PR2
CMIE
GPIE
CMIF
Bit 3
EQ
Reset
OSFIE
OSFIF
Bit 2
T0IF
Postscaler
1:1 to 1:16
TOUTPS<3:0>
Output
TMR2
TMR2IE
TMR2IF
4
Bit 1
INTF
TMR1IF 000- 0000 000- 0000
TMR1IE 000- 0000 000- 0000
GPIF
Bit 0
 2004 Microchip Technology Inc.
bit TMR2IF
Sets Flag
0000 0000 0000 0000
0000 0000 0000 0000
1111 1111 1111 1111
POR, BOD
Value on
Value on
all other
Resets