AC162078 Microchip Technology, AC162078 Datasheet - Page 121

• Manufacturer Part Number: AC162078
• Description: HEADER INTRFC MPLAB ICD2 18F1330
• Manufacturer: Microchip Technology

Specifications of AC162078

• Accessory Type: Transition Header
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: ICD2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Not applicable / Not applicable

FIGURE 14-4:
The PWM time base can be configured for four different
modes of operation:
• Free-Running mode
• Single-Shot mode
• Continuous Up/Down Count mode
• Continuous Up/Down Count mode with interrupts
 2009 Microchip Technology Inc.
for double updates
F
OSC
/4
Comparator
PWM TIME BASE BLOCK DIAGRAM
PTPER Buffer
1:1, 1:4, 1:16, 1:64
PTPER
Prescaler
Zero Match
Period Match
PTMR Register
Comparator
Period Load
Update Disable (UDIS)
Postscaler
Period Match
Period Match
1:1-1:16
Zero Match
Zero Match
PTMOD1
PTMOD1
PTMOD0
PTMOD1
PTMOD0
PTMR Clock
Timer Reset
Up/Down
Direction
These
PTMOD1:PTMOD0 bits in the PTCON0 register. The
Free-Running mode produces edge-aligned PWM
generation. The Continuous Up/Down Count modes
produce center-aligned PWM generation. The Single-
Shot mode allows the PWM module to support pulse
control of certain Electronically Commutated Motors
(ECMs) and produces edge-aligned operation.
Interrupt
Control
Control
Control
Timer
Clock
PIC18F1230/1330
four
PTDIR
PTMR Clock
PTEN
modes
PTIF
are
Duty Cycle Load
selected
DS39758D-page 121
by
the