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MCP19124 Datasheet(PDF) 155 Page - Microchip Technology

Part # MCP19124
Description  Digitally-Enhanced Power Analog Synchronous Low-Side Dual-Loop PWM Controller
PDF  236 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP19124 Datasheet(HTML) 155 Page - Microchip Technology

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 2016 Microchip Technology Inc.
DS20005619A-page 155
MCP19124/5
27.1.4
PWM DUTY CYCLE (DCLOCK)
The PWM duty cycle (DCLOCK) is specified by writing
to the PWMRL register. Up to 8-bit resolution is
available. The following equation is used to calculate
the PWM duty cycle (DCLOCK).
EQUATION 27-3:
The PWMRL bits can be written to at any time, but the
duty cycle value is not latched into PWMRH until after
a match between PR2 and TMR2 occurs.
27.2
Operation During Sleep
When the device is placed in Sleep, the allocated
timer will not increment and the state of the module will
not change. If the CLKPIN pin is driving a value, it will
continue to drive that value. When the device wakes
up, it will continue from this state.
PWM
DUTY CYCLE
PWMRL
T
OSC
T2
PRESCALE VALUE

=
TABLE 27-1:
SUMMARY OF REGISTERS ASSOCIATED WITH PWM MODULE
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Register
on Page
MODECON
MSC1
MSC0
RFB
—MSC2
—
—
—
52
T2CON
—
—
—
—
—
TMR2ON T2CKPS1 T2CKPS0
144
PR2
Timer2 Module Period Register
153*
PWMRL
PWM Register Low Byte
153*
PWMPHL
Phase Shift Low Byte
153*
Legend:
— = Unimplemented locations, read as ‘0’. Shaded cells are not used by PWM mode.
* Page provides register information.



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