4 peripherals, 1 32-bit cpu-timers 0/1/2, 4peripherals – Texas Instruments Digital Signal Processor SM320F2812-HT User Manual

Page 50

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Reset

Timer Reload

SYSCLKOUT

TCR.4

(Timer Start Status)

TINT

16-Bit Timer Divide-Down

TDDRH:TDDR

32-Bit Timer Period

PRDH:PRD

32-Bit Counter

TIMH:TIM

16-Bit Prescale Counter

PSCH:PSC

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SM320F2812-HT

SGUS062B

JUNE 2009

REVISED JUNE 2011

www.ti.com

4

Peripherals

The integrated peripherals of the F2812 are described in the following subsections:

Three 32-bit CPU-Timers

Two event-manager modules (EVA, EVB)

Enhanced analog-to-digital converter (ADC) module

Enhanced controller area network (eCAN) module

Multichannel buffered serial port (McBSP) module

Serial communications interface modules (SCI-A, SCI-B)

Serial peripheral interface (SPI) module

Digital I/O and shared pin functions

4.1

32-Bit CPU-Timers 0/1/2

There are three 32-bit CPU-timers on the F2812 devices (CPU-TIMER0/1/2).

CPU-Timers 1 and 2 are reserved for the real-time OS (such as DSP/BIOS). CPU-Timer 0 can be used in
user applications. These timers are different from the general-purpose (GP) timers that are present in the
Event Manager modules (EVA, EVB).

NOTE

If the application is not using DSP/BIOS, then CPU-Timers 1 and 2 can be used in the
application.

Figure 4-1. CPU-Timers

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Peripherals

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©

2009

2011, Texas Instruments Incorporated

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