Microchip Technology MA330031-2 Data Sheet

 2011-2013 Microchip Technology Inc.

DS70000657H-page 337

The Peripheral Trigger Generator (PTG) provides a
means to schedule complex high-speed peripheral
operations that would be difficult to achieve using soft-
ware. The PTG module uses 8-bit commands, called
“Steps”, that the user writes to the PTG Queue
registers (PTGQUE0-PTGQUE7), which perform oper-
ations, such as wait for input signal, generate output
trigger and wait for timer.

The PTG module has the following major features:
• Multiple clock sources
• Two 16-bit general purpose timers
• Two 16-bit general limit counters
• Configurable for rising or falling edge triggering
• Generates processor interrupts to include:

- Four configurable processor interrupts
- Interrupt on a Step event in Single-Step mode
- Interrupt on a PTG Watchdog Timer time-out

• Able to receive trigger signals from these 

peripherals:
- ADC
- PWM
- Output Compare 
- Input Capture
- Op Amp/Comparator
- INT2

• Able to trigger or synchronize to these 

peripherals:
- Watchdog Timer
- Output Compare
- Input Capture
- ADC
- PWM 
- Op Amp/Comparator

This data sheet summarizes the
features of the dsPIC33EPXXXGP50X,
dsPIC33EPXXXMC20X/50X and
PIC24EPXXXGP/MC20X families of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to “Peripheral Trigger
Generator (PTG)”

 (DS70669) in the

, which is available from the

www.microchip.com

).

Some registers and associated bits
described in this section may not be
available on all devices. Refer to

 in

this data sheet for device-specific register
and bit information.