Microchip Technology DV320032 Data Sheet
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
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
• 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
(
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
available on all devices. Refer to
in
this data sheet for device-specific register
and bit information.
and bit information.
OCxR
(1)
Comparator
Output
Logic
Q
S
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
Enable
Timer3
Rollover
Rollover