Datasheet

 2012-2013 Microchip Technology Inc. DS60001185C-page 191
PIC32MX330/350/370/430/450/470
16.0 OUTPUT COMPARE
The Output Compare module is used to generate a
single pulse or a train of pulses in response to selected
time base events. For all modes of operation, the
Output Compare module compares the values stored
in the OCxR and/or the OCxRS registers to the value in
the selected timer. When a match occurs, the Output
Compare module generates an event based on the
selected mode of operation.
The following are key features of this module:
• Multiple Output Compare modules in a device
• Programmable interrupt generation on compare
event
• Single and Dual Compare modes
• Single and continuous output pulse generation
• Pulse-Width Modulation (PWM) mode
• Hardware-based PWM Fault detection and
automatic output disable
• Can operate from either of two available 16-bit
time bases or a single 32-bit time base
FIGURE 16-1: OUTPUT COMPARE MODULE BLOCK DIAGRAM
Note 1: This data sheet summarizes the features
of the PIC32MX330/350/370/430/450/
470 family of devices. It is not intended to
be a comprehensive reference source.
To complement the information in this
data sheet, refer to Section 16. “Output
Compare” (DS60001111) in the “PIC32
Family Reference Manual”
, which is
available from the Microchip web site
(www.microchip.com/PIC32).
2: Some registers and associated bits
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization” in
this data sheet for device-specific register
and bit information.
OCxR
(1)
Comparator
Output
Logic
QS
R
OCM<2:0>
Output Enable
OCx
(1)
Set Flag bit
OCxIF
(1)
OCxRS
(1)
Mode Select
3
Note 1: Where ‘x’ is shown, reference is made to the registers associated with the respective output compare channels,
1 through 5.
2: The OCFA pin controls the OC1-OC4 channels. The OCFB pin controls the OC5 channel.
0
1
OCTSEL
0
1
16 16
OCFA or OCFB
(2)
Timer2
Timer2
Timer3
Logic
Output
Enable
Timer3
Rollover
Rollover