PIC18F85K22-I/PT Microchip Technology, PIC18F85K22-I/PT Datasheet - Page 217

• Manufacturer Part Number: PIC18F85K22-I/PT
• Description: IC, 8BIT MCU, PIC18F, 64MHZ, TQFP-80
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F85K22-I/PT

• Controller Family/series: PIC18
• No. Of I/o's: 69
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2KB
• Cpu Speed: 64MHz
• No. Of Timers: 8
• Core Size: 8 Bit
• Program Memory Size: 32KB
• Core Processor: PIC
• Speed: 64MHz
• Connectivity: EBI/EMI, I²C, LIN, 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: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 24x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

16.5
Timer3/5/7 can be configured to count freely or the count
can be enabled and disabled using the Timer3/5/7 gate
circuitry. This is also referred to as the Timer3/5/7 gate
count enable.
The Timer3/5/7 gate can also be driven by multiple
selectable sources.
16.5.1
The Timerx Gate Enable mode is enabled by setting
the TMRxGE bit (TxGCON<7>). The polarity of the
Timerx Gate Enable mode is configured using the
TxGPOL bit (TxGCON<6>).
FIGURE 16-2:
 2009-2011 Microchip Technology Inc.
Timer3/5/7
TMRxGE
TxGPOL
Timer3/5/7 Gates
TxGVAL
TxG_IN
TxCKI
TIMER3/5/7 GATE COUNT ENABLE
TIMER3/5/7 GATE COUNT ENABLE MODE
N
N + 1
PIC18F87K22 FAMILY
When Timerx Gate Enable mode is enabled, Timer3/5/7
will increment on the rising edge of the Timer3/5/7 clock
source. When Timerx Gate Enable mode is disabled, no
incrementing will occur and Timer3/5/7 will hold the
current count. See
TABLE 16-1:
† The clock on which TMR3/5/7 is running. For
TxCLK
more information, see TxCLK in




(†)
N + 2
(TxGCON<6>)
TxGPOL
TIMER3/5/7 GATE ENABLE
SELECTIONS
0
0
1
1
Figure 16-2
TxG Pin
N + 3
for timing details.
0
1
0
1
DS39960D-page 217
Figure
Counts
Holds Count
Holds Count
Counts
N + 4
Operation
Timerx
16-1.