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AM3874 Datasheet(PDF) 343 Page - Texas Instruments |
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AM3874 Datasheet(HTML) 343 Page - Texas Instruments |
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343 / 361 page  AM3874, AM3871 www.ti.com SPRS695C – SEPTEMBER 2011 – REVISED DECEMBER 2013 8.20 Timers The device has eight 32-bit general-purpose (GP) timers (TIMER8 - TIMER1) that have the following features: • TIMER8, TIMER1 are for software use and do not have an external connection • Dedicated input trigger for capture mode and dedicated output trigger/pulse width modulation (PWM) signal • Interrupts generated on overflow, compare, and capture • Free-running 32-bit upward counter • Supported modes: – Compare and capture modes – Auto-reload mode – Start-stop mode • TIMER[8:1] functional clock is sourced from either the DEVOSC, AUXOSC, AUD_CLK2/1/0, TCLKIN, or SYSCLK18 27 MHz as selected by the timer clock multiplexers. • On-the-fly read/write register (while counting) • Generates interrupts to the ARM and Media Controller. The device has one system watchdog timer that have the following features: • Free-running 32-bit upward counter • On-the-fly read/write register (while counting) • Reset upon occurrence of a timer overflow condition • The system watchdog timer has two possible clock sources: – RCOSC32K oscillator – RTCDIVIDER • The watchdog timer is used to provide a recovery mechanism for the device in the event of a fault condition, such as a non-exiting code loop. For more detailed information on the GP and Watchdog Timers, see the Timers and Watchdog Timer chapters of the AM387x Sitara™ ARM Processors Technical Reference Manual (Literature Number: SPRUGZ7). 8.20.1 Timer Peripheral Register Descriptions Copyright © 2011–2013, Texas Instruments Incorporated Peripheral Information and Timings 343 Submit Documentation Feedback Product Folder Links: AM3874 AM3871 |
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