PIC18LF8621-I/PT Microchip Technology, PIC18LF8621-I/PT Datasheet - Page 147

• 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

14.2
The Timer1 oscillator may be used as the clock source
for Timer3. The Timer1 oscillator is enabled by setting
the T1OSCEN (T1CON<3>) bit. The oscillator is a low-
power oscillator rated up to 200 kHz. See Section 12.0
“Timer1 Module” for further details.
14.3
The TMR3 register pair (TMR3H:TMR3L) increments
from 0000h to FFFFh and rolls over to 0000h. The
TMR3 interrupt, if enabled, is generated on overflow
which is latched in interrupt flag bit, TMR3IF
(PIR2<1>). This interrupt can be enabled/disabled by
setting/clearing TMR3 interrupt enable bit, TMR3IE
(PIE2<1>).
TABLE 14-1:
 2005 Microchip Technology Inc.
INTCON
PIR2
PIE2
IPR2
TMR3L
TMR3H
T1CON
T3CON
Legend:
Name
Timer1 Oscillator
Timer3 Interrupt
Timer3 Register Low Byte
Timer3 Register High Byte
x = unknown, u = unchanged, — = unimplemented, read as ‘0’. Shaded cells are not used by the Timer3 module.
GIEH
RD16
RD16
Bit 7
GIE/
—
—
—
REGISTERS ASSOCIATED WITH TIMER3 AS A TIMER/COUNTER
T3CCP2
PEIE/
CMIF
CMIE
CMIP
Bit 6
GIEL
—
T1CKPS1 T1CKPS0 T1OSCEN T1SYNC
T3CKPS1 T3CKPS0
TMR0IE
Bit 5
—
—
—
INT0IE
EEIF
EEIE
EEIP
Bit 4
PIC18F6525/6621/8525/8621
T3CCP1
BCLIE
BCLIP
BCLIF
RBIE
Bit 3
T3SYNC
TMR0IF
14.4
If either the ECCP1 or ECCP2 module is configured in
Compare mode to generate a special event trigger
(CCP1M3:CCP1M0 = 1011), this signal will reset
Timer3.
Timer3 must be configured for either Timer or Synchro-
nized Counter mode to take advantage of this feature.
If Timer3 is running in Asynchronous Counter mode,
this Reset operation may not work. In the event that a
write to Timer3 coincides with a special event trigger
from ECCP1, the write will take precedence. In this
mode of operation, the CCPR1H:CCPR1L register pair
effectively becomes the period register for Timer3.
LVDIE
LVDIP
LVDIF
Bit 2
Note:
Resetting Timer3 Using an ECCP
Special Trigger Output
TMR1CS TMR1ON 0-00 0000 u-uu uuuu
TMR3CS TMR3ON 0000 0000 uuuu uuuu
TMR3IF
TMR3IE
TMR3IP
INT0IF
Bit 1
The special event triggers from the ECCP
module will not set interrupt flag bit,
TMR3IF (PIR1<0>).
CCP2IE
CCP2IP
CCP2IF
RBIF
Bit 0
0000 000x 0000 000u
-0-0 0000 -0-0 0000
-0-0 0000 -0-0 0000
-1-1 1111 -1-1 1111
xxxx xxxx uuuu uuuu
xxxx xxxx uuuu uuuu
POR, BOR
Value on
DS39612B-page 145
Value on
all other
Resets