PIC18F85K22-I/PT Microchip Technology, PIC18F85K22-I/PT Datasheet - Page 224

• 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

PIC18F87K22 FAMILY
REGISTER 17-1:
17.2
The Timer4/6/8/10/12 modules have eight-bit Period
registers, PRx, that are both readable and writable.
Timer4/6/8/10/12 increment from 00h until they match
PR4/6/8/10/12 and then reset to 00h on the next
increment cycle. The PRx registers are initialized to
FFh upon Reset.
FIGURE 17-1:
DS39960D-page 224
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6-3
bit 2
bit 1-0
U-0
—
TxOUTPS<3:0>
TxCKPS<1:0>
F
OSC
Timer4/6/8/10/12 Interrupt
/4
Unimplemented: Read as ‘0’
TxOUTPS<3:0>: Timerx Output Postscale Select bits
0000 = 1:1 Postscale
0001 = 1:2 Postscale
•
•
•
1111 = 1:16 Postscale
TMRxON: Timerx On bit
1 = Timerx is on
0 = Timerx is off
TxCKPS<1:0>: Timerx Clock Prescale Select bits
00 = Prescaler is 1
01 = Prescaler is 4
1x = Prescaler is 16
TxOUTPS3
R/W-0
TxCON: TIMERx CONTROL REGISTER
TIMER4 BLOCK DIAGRAM
1:1, 1:4, 1:16
Internal Data Bus
2
W = Writable bit
‘1’ = Bit is set
Prescaler
TxOUTPS2
R/W-0
TxOUTPS1
4
R/W-0
TMRx
Reset
8
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
TxOUTPS0
R/W-0
17.3
The outputs of TMRx (before the postscaler) are used
only as a PWM time base for the ECCP modules. They
are not used as baud rate clocks for the MSSP
modules as is the Timer2 output.
Comparator
1:1 to 1:16
Postscaler
Output of TMRx
TMRx/PRx
Match
8
TMRxON
R/W-0
 2009-2011 Microchip Technology Inc.
x = Bit is unknown
TxCKPS1
PRx
R/W-0
8
TMRx Output
(to PWM)
Set TMRxIF
TxCKPS0
R/W-0
bit 0