PIC18F45J10-E/P Microchip Technology, PIC18F45J10-E/P Datasheet - Page 139
![IC PIC MCU FLASH 16KX16 40DIP](/photos/6/61/66192/150-40-dip_sml.jpg)
PIC18F45J10-E/P
Manufacturer Part Number
PIC18F45J10-E/P
Description
IC PIC MCU FLASH 16KX16 40DIP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F24J10-ISO.pdf
(368 pages)
3.PIC18F24J10-ISO.pdf
(6 pages)
4.PIC18F24J10-ISO.pdf
(6 pages)
5.PIC18F24J10-ISO.pdf
(12 pages)
6.PIC18LF24J10-ISS.pdf
(32 pages)
Specifications of PIC18F45J10-E/P
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
40-DIP (0.600", 15.24mm)
For Use With
AC162074 - HEADER INTRFC MPLAB ICD2 44TQFPMA180013 - MODULE PLUG-IN 18F45J10 44TQFPAC162067 - HEADER INTRFC MPLAB ICD2 40/28PAC164329 - MODULE SKT FOR 40DIP 18F45J10
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
- PIC16F616T-ISL PDF datasheet
- PIC18F24J10-ISO PDF datasheet #2
- PIC18F24J10-ISO PDF datasheet #3
- PIC18F24J10-ISO PDF datasheet #4
- PIC18F24J10-ISO PDF datasheet #5
- PIC18LF24J10-ISS PDF datasheet #6
- Current page: 139 of 368
- Download datasheet (6Mb)
15.4
The Enhanced PWM mode provides additional PWM
output options for a broader range of control applica-
tions. The module is a backward compatible version of
the standard CCP module and offers up to four outputs,
designated P1A through P1D. Users are also able to
select the polarity of the signal (either active-high or
active-low). The module’s output mode and polarity are
configured by setting the P1M<1:0> and CCP1M<3:0>
bits of the CCP1CON register.
Figure 15-1 shows a simplified block diagram of PWM
operation. All control registers are double-buffered and
are loaded at the beginning of a new PWM cycle (the
period boundary when Timer2 resets) in order to
prevent glitches on any of the outputs. The exception is
the PWM Dead-Band Delay register, ECCP1DEL,
which is loaded at either the duty cycle boundary or the
period boundary (whichever comes first). Because of
the buffering, the module waits until the assigned timer
resets instead of starting immediately. This means that
Enhanced PWM waveforms do not exactly match the
standard PWM waveforms, but are instead offset by
one full instruction cycle (4 T
As before, the user must manually configure the
appropriate TRIS bits for output.
FIGURE 15-1:
© 2009 Microchip Technology Inc.
Enhanced PWM Mode
Note: The 8-bit TMR2 register is concatenated with the 2-bit internal Q clock, or 2 bits of the prescaler, to create the 10-bit
CCPR1H (Slave)
Duty Cycle Registers
Comparator
CCPR1L
TMR2
time base.
PR2
Comparator
SIMPLIFIED BLOCK DIAGRAM OF THE ENHANCED PWM MODULE
(Note 1)
OSC
Clear Timer,
set CCP1 pin and
latch D.C.
CCP1CON<5:4>
).
R
S
P1M1<1:0>
Q
PIC18F45J10 FAMILY
ECCP1DEL
Controller
15.4.1
The PWM period is specified by writing to the PR2
register. The PWM period can be calculated using the
following equation.
EQUATION 15-1:
PWM frequency is defined as 1/[PWM period]. When
TMR2 is equal to PR2, the following three events occur
on the next increment cycle:
• TMR2 is cleared
• The CCP1 pin is set (if PWM duty cycle = 0%, the
• The PWM duty cycle is copied from CCPR1L into
Output
2
CCP1/P1A
CCP1 pin will not be set)
CCPR1H
Note:
P1B
P1C
P1D
PWM Period =
CCP1M<3:0>
4
PWM PERIOD
The Timer2 postscaler (see Section 13.0
“Timer2 Module”) is not used in the
determination of the PWM frequency. The
postscaler could be used to have a servo
update rate at a different frequency than
the PWM output.
TRISx<x>
TRISx<x>
TRISx<x>
TRISx<x>
[(PR2) + 1] • 4 • T
(TMR2 Prescale Value)
DS39682E-page 137
CCP1/P1A
P1B
P1C
P1D
OSC
•
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