PIC18F4680-I/PT Microchip Technology, PIC18F4680-I/PT Datasheet - Page 161

• Manufacturer Part Number: PIC18F4680-I/PT
• Description: IC MCU FLASH 32KX16 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4680-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 64KB (32K x 16)
• Package / Case: 44-TQFP, 44-VQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 36
• Eeprom Size: 1K x 8
• Ram Size: 3.25K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3.25 KB
• Interface Type: I2C/SPI/EUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 44
• Number Of Timers: 4
• Operating Supply Voltage: 4.2 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, DM163011
• Minimum Operating Temperature: - 25 C
• On-chip Adc: 11-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44PT3 - SOCKET TRAN ICE 44MQFP/TQFPI3-DB18F4680 - BOARD DAUGHTER ICEPIC3AC164305 - MODULE SKT FOR PM3 44TQFP444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

14.0
The Timer3 module timer/counter incorporates these
features:
• Software selectable operation as a 16-bit timer or
• Readable and writable 8-bit registers (TMR3H
• Selectable clock source (internal or external) with
• Interrupt-on-overflow
• Module Reset on CCP1 special event trigger
REGISTER 14-1:
 2004 Microchip Technology Inc.
counter
and TMR3L)
device clock or Timer1 oscillator internal options
TIMER3 MODULE
bit 7
bit 6,3
bit 5-4
bit 2
bit 1
bit 0
T3CON: TIMER3 CONTROL REGISTER
bit 7
RD16: 16-bit Read/Write Mode Enable bit
1 = Enables register read/write of Timer3 in one 16-bit operation
0 = Enables register read/write of Timer3 in two 8-bit operations
T3ECCP1:T3CCP1: Timer3 and Timer1 to ECCP1/CCP1 Enable bits
1x = Timer3 is the capture/compare clock source for both CCP1 and ECCP1 modules
01 = Timer3 is the capture/compare clock source for ECCP1;
00 = Timer1 is the capture/compare clock source for both CCP1 and ECCP1 modules
T3CKPS1:T3CKPS0: Timer3 Input Clock Prescale Select bits
11 = 1:8 Prescale value
10 = 1:4 Prescale value
01 = 1:2 Prescale value
00 = 1:1 Prescale value
T3SYNC: Timer3 External Clock Input Synchronization Control bit
(Not usable if the device clock comes from Timer1/Timer3.)
When TMR3CS = 1:
1 = Do not synchronize external clock input
0 = Synchronize external clock input
When TMR3CS = 0:
This bit is ignored. Timer3 uses the internal clock when TMR3CS = 0.
TMR3CS: Timer3 Clock Source Select bit
1 = External clock input from Timer1 oscillator or T13CKI (on the rising edge after the first
0 = Internal clock (F
TMR3ON: Timer3 On bit
1 = Enables Timer3
0 = Stops Timer3
Legend:
R = Readable bit
-n = Value at POR
R/W-0
RD16
Note 1: These bits are available on PIC18F4X8X devices only.
falling edge)
Timer1 is the capture/compare clock source for CCP1
T3ECCP1
R/W-0
(1)
OSC
PIC18F2585/2680/4585/4680
T3CKPS1 T3CKPS0 T3CCP1
/4)
R/W-0
Preliminary
W = Writable bit
‘1’ = Bit is set
R/W-0
A simplified block diagram of the Timer3 module is
shown in Figure 14-1. A block diagram of the module’s
operation in Read/Write mode is shown in Figure 14-2.
The Timer3 module is controlled through the T3CON
register (Register 14-1). It also selects the clock source
options for the CCP1 modules (see Section 15.1.1
“CCP1 Modules and Timer Resources” for more
information).
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
(1)
T3SYNC TMR3CS TMR3ON
R/W-0
(1)
x = Bit is unknown
R/W-0
DS39625B-page 159
R/W-0
bit 0