PIC18LF8621-I/PT Microchip Technology, PIC18LF8621-I/PT Datasheet - Page 144

• Manufacturer Part Number: PIC18LF8621-I/PT
• Description: IC PIC MCU FLASH 32KX16 80TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF8621-I/PT

• Core Size: 8-Bit
• Program Memory Size: 64KB (32K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 3.8K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TFQFP
• Controller Family/series: PIC18
• No. Of I/o's: 70
• Eeprom Memory Size: 1024Byte
• Ram Memory Size: 3840Byte
• Cpu Speed: 40MHz
• No. Of Timers: 5
• Processor Series: PIC18LF
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3840 B
• Interface Type: MSSP, SPI, I2C, EUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 69
• Number Of Timers: 2 x 8 bit
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM183032
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 16 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC18F6525/6621/8525/8621
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:
DS39612B-page 142
INTCON GIE/GIEH PEIE/GIEL
PIR1
PIE1
IPR1
TMR2
T2CON
PR2
Legend:
Note 1:
Name
Timer2 Interrupt
Timer2 Module Register
Timer2 Period Register
PSPIE
PSPIP
PSPIF
Note 1: TMR2 register output can be software selected by the MSSP module as a baud clock.
x = unknown, u = unchanged, — = unimplemented, read as ‘0’. Shaded cells are not used by the Timer2 module.
Enabled only in Microcontroller mode for PIC18F8525/8621 devices.
Bit 7
F
—
OSC
(1)
(1)
(1)
/4
REGISTERS ASSOCIATED WITH TIMER2 AS A TIMER/COUNTER
T2OUTPS3 T2OUTPS2 T2OUTPS1 T2OUTPS0 TMR2ON T2CKPS1 T2CKPS0 -000 0000 -000 0000
ADIE
ADIP
ADIF
TIMER2 BLOCK DIAGRAM
Bit 6
T2CKPS1:T2CKPS0
1:1, 1:4, 1:16
Prescaler
TMR0IE
RC1IF
RC1IE
RC1IP
Bit 5
2
INT0IE
TX1IF
TX1IE
TX1IP
Bit 4
Comparator
TMR2
PR2
SSPIF
SSPIE
SSPIP
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.
EQ
Reset
T2OUTPS3:T2OUTPS0
TMR0IF
CCP1IE
CCP1IP
CCP1IF
Bit 2
Postscaler
1:1 to 1:16
Output of TMR2
Output
TMR2IF
TMR2IE
TMR2IP
TMR2
INT0IF
4
Bit 1
(1)
TMR1IF 0000 0000 0000 0000
TMR1IE 0000 0000 0000 0000
TMR1IP 1111 1111 1111 1111
RBIF
Bit 0
 2005 Microchip Technology Inc.
bit TMR2IF
0000 000x 0000 000u
0000 0000 0000 0000
1111 1111 1111 1111
Sets Flag
POR, BOR
Value on
Value on
all other
Resets