PIC18F1220-I/SO Microchip Technology Inc., PIC18F1220-I/SO Datasheet - Page 112
![no-image](/images/manufacturer_photos/0/4/440/microchip_technology_inc__sml.jpg)
PIC18F1220-I/SO
Manufacturer Part Number
PIC18F1220-I/SO
Description
Microcontroller; 4 KB Flash; 256 RAM; 256 EEPROM; 16 I/O; 18-Pin-SOIC
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F1220-ISO.pdf
(310 pages)
Specifications of PIC18F1220-I/SO
A/d Inputs
7-Channel, 10-Bit
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
16
Interface
USART
Memory Type
Flash
Number Of Bits
8
Package Type
18-pin SOIC
Programmable Memory
4K Bytes
Ram Size
256 Bytes
Speed
20 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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PIC18F1220/1320
13.2
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 13-1:
TABLE 13-1:
DS39605C-page 110
INTCON GIE/GIEH PEIE/GIEL
PIR1
PIE1
IPR1
TMR2
T2CON
PR2
Legend:
Name
Timer2 Interrupt
Timer2 Module Register
Timer2 Period Register
x = unknown, u = unchanged, – = unimplemented, read as ‘0’. Shaded cells are not used by the Timer2 module.
Bit 7
—
—
—
—
F
OSC
/4
REGISTERS ASSOCIATED WITH TIMER2 AS A TIMER/COUNTER
TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON T2CKPS1 T2CKPS0 -000 0000 -000 0000
ADIF
ADIE
ADIP
Bit 6
TIMER2 BLOCK DIAGRAM
T2CKPS1:T2CKPS0
1:1, 1:4, 1:16
TMR0IE
Prescaler
RCIF
RCIE
RCIP
Bit 5
2
INT0IE
TXIE
TXIP
Bit 4
TXIF
Comparator
TMR2
PR2
RBIE
Bit 3
—
—
—
13.3
The output of TMR2 (before the postscaler) is fed to the
Synchronous Serial Port module, which optionally uses
it to generate the shift clock.
TMR0IF
CCP1IF
CCP1IE
CCP1IP
Reset
EQ
Bit 2
TOUTPS3:TOUTPS0
Postscaler
1:1 to 1:16
Output of TMR2
TMR2IE
TMR2IP
TMR2IF
INT0IF
Bit 1
Output
TMR2
4
(1)
TMR1IF
TMR1IE
TMR1IP
RBIF
Bit 0
2004 Microchip Technology Inc.
0000 000x 0000 000u
-000 -000 -000 -000
-000 -000 -000 -000
-111 -111 -111 -111
0000 0000 0000 0000
1111 1111 1111 1111
POR, BOR
Value on
bit TMR2IF
Sets Flag
Value on
all other
Resets
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