Datasheet
The TM4C129ENCPDT microcontroller includes twelve 16/32-bit CCP pins that can be programmed
to operate in the following modes:
■ Capture: The GP Timer is incremented/decremented by programmed events on the CCP input.
The GP Timer captures and stores the current timer value when a programmed event occurs.
■ Compare: The GP Timer is incremented/decremented by programmed events on the CCP input.
The GP Timer compares the current value with a stored value and generates an interrupt when
a match occurs.
■ PWM: The GP Timer is incremented/decremented by the system clock. A PWM signal is generated
based on a match between the counter value and a value stored in a match register and is output
on the CCP pin.
1.3.9.5 Hibernation Module (HIB) (see page 539)
The Hibernation module provides logic to switch power off to the main processor and peripherals
and to wake on external or time-based events. The Hibernation module includes power-sequencing
logic and has the following features:
■ 32-bit real-time seconds counter (RTC) with 1/32,768 second resolution and a 15-bit sub-seconds
counter
– 32-bit RTC seconds match register and a 15-bit sub seconds match for timed wake-up and
interrupt generation with 1/32,768 second resolution
– RTC predivider trim for making fine adjustments to the clock rate
■ Hardware Calendar Function
– Year, Month, Day, Day of Week, Hours, Minutes, Seconds
– Four-year leap compensation
– 24-hour or AM/PM configuration
■ Two mechanisms for power control
– System power control using discrete external regulator
– On-chip power control using internal switches under register control
■ V
DD
supplies power when valid, even if V
BAT
> V
DD
■ Dedicated pin for waking using an external signal
■ Capability to configure external reset (RST) pin and/or up to four GPIO port pins as wake source,
with programmable wake level
■ Tamper Functionality
– Support for four tamper inputs
– Configurable level, weak pull-up, and glitch filter
– Configurable tamper event response
77June 18, 2014
Texas Instruments-Production Data
Tiva
™
TM4C129ENCPDT Microcontroller