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LM3S101 Datasheet, PDF (241/445 Pages) List of Unclassifed Manufacturers – Microcontroller | |||
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Stellaris® LM3S101 Microcontroller
8 General-Purpose Timers
Programmable timers can be used to count or time external events that drive the Timer input pins.
The Stellaris® General-Purpose Timer Module (GPTM) contains two GPTM blocks (Timer0 and
Timer1). Each GPTM block provides two 16-bit timers/counters (referred to as TimerA and TimerB)
that can be configured to operate independently as timers or event counters, or configured to operate
as one 32-bit timer or one 32-bit Real-Time Clock (RTC).
The GPT Module is one timing resource available on the Stellaris microcontrollers. Other timer
resources include the System Timer (SysTick) (see 78).
The General-Purpose Timers provide the following features:
â Two General-Purpose Timer Modules (GPTM), each of which provides two 16-bit timers/counters.
Each GPTM can be configured to operate independently:
â As a single 32-bit timer
â As one 32-bit Real-Time Clock (RTC) to event capture
â For Pulse Width Modulation (PWM)
â 32-bit Timer modes
â Programmable one-shot timer
â Programmable periodic timer
â Real-Time Clock when using an external 32.768-KHz clock as the input
â User-enabled stalling when the controller asserts CPU Halt flag during debug
â 16-bit Timer modes
â General-purpose timer function with an 8-bit prescaler (for one-shot and periodic modes only)
â Programmable one-shot timer
â Programmable periodic timer
â User-enabled stalling when the controller asserts CPU Halt flag during debug
â 16-bit Input Capture modes
â Input edge count capture
â Input edge time capture
â 16-bit PWM mode
â Simple PWM mode with software-programmable output inversion of the PWM signal
8.1 Block Diagram
Note: In Figure 8-1 on page 242, the specific CCP pins available depend on the Stellaris device.
See Table 8-1 on page 242 for the available CCPs.
July 14, 2014
241
Texas Instruments-Production Data
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