Datasheet

Real-Time Clock (RTC). Timers can also be used to trigger analog-to-digital (ADC) conversions
and DMA transfers.
The General-Purpose Timer Module (GPTM) contains eight 16/32-bit GPTM blocks with the following
functional options:
■ Operating modes:
– 16- or 32-bit programmable one-shot timer
– 16- or 32-bit programmable periodic timer
– 16-bit general-purpose timer with an 8-bit prescaler
– 32-bit Real-Time Clock (RTC) when using an external 32.768-KHz clock as the input
– 16-bit input-edge count- or time-capture modes with an 8-bit prescaler
– 16-bit PWM mode with an 8-bit prescaler and software-programmable output inversion of the
PWM signal
– The System Clock or a global Alternate Clock (ALTCLK) resource can be used as timer clock
source. The global ALTCLK can be:
• PIOSC
• Hibernation Module Real-time clock output (RTCOSC)
• Low-frequency internal oscillator (LFIOSC)
■ Count up or down
■ Twelve 16/32-bit Capture Compare PWM pins (CCP)
■ Daisy chaining of timer modules to allow a single timer to initiate multiple timing events
■ Timer synchronization allows selected timers to start counting on the same clock cycle
■ ADC event trigger
■ User-enabled stalling when the microcontroller asserts CPU Halt flag during debug (excluding
RTC mode)
■ Ability to determine the elapsed time between the assertion of the timer interrupt and entry into
the interrupt service routine
■ Efficient transfers using Micro Direct Memory Access Controller (µDMA)
– Dedicated channel for each timer
– Burst request generated on timer interrupt
1.3.9.4 CCP Pins (see page 1086)
Capture Compare PWM pins (CCP) can be used by the General-Purpose Timer Module to time/count
external events using the CCP pin as an input. Alternatively, the GPTM can generate a simple PWM
output on the CCP pin.
June 18, 201476
Texas Instruments-Production Data
Architectural Overview