TMS320C6421 datasheet(207/227 Pages) TI

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6.17 Timers

6.17.1

Timer Peripheral Register Description(s)

TMS320C6421

Fixed-Point Digital Signal Processor

SPRS346B – JANUARY 2007 – REVISED APRIL 2007

The C6421 device has 3 64-bit general-purpose timers which have the following features:

• 64-bit count-up counter

• Timer modes:

–

64-bit general-purpose timer mode (Timer 0 and 1)

–

Dual 32-bit general-purpose timer mode (Timer 0 and 1)

–

Watchdog timer mode (Timer 2)

• 2 possible clock sources:

–

Internal clock

–

External clock input via timer input pin TINPL (Timer 0 and 1 only)

• 2 operation modes:

–

One-time operation (timer runs for one period then stops)

–

Continuous operation (timer automatically resets after each period)

• Generates interrupts to the DSP

• Generates sync event to EDMA

• Causes device global reset upon watchdog timer timeout (Timer 2 only)

For more detailed information, see the TMS320C642x DSP 64-Bit Timer User's Guide (literature number

SPRUEN5).

Table 6-67. Timer 0 Registers

HEX ADDRESS RANGE

ACRONYM

DESCRIPTION

0x01C2 1400

Reserved

0x01C2 1404

EMUMGT_CLKSPD

Timer 0 Emulation Management/Clock Speed Register

0x01C2 1410

TIM12

Timer 0 Counter Register 12

0x01C2 1414

TIM34

Timer 0 Counter Register 34

0x01C2 1418

PRD12

Timer 0 Period Register 12

0x01C2 141C

PRD34

Timer 0 Period Register 34

0x01C2 1420

TCR

Timer 0 Control Register

0x01C2 1424

TGCR

Timer 0 Global Control Register

0x01C2 1428 - 0x01C2 17FF

Reserved

Table 6-68. Timer 1 Registers

HEX ADDRESS RANGE

ACRONYM

DESCRIPTION

0x01C2 1800

Reserved

0x01C2 1804

EMUMGT_CLKSPD

Timer 1 Emulation Management/Clock Speed Register

0x01C2 1810

TIM12

Timer 1 Counter Register 12

0x01C2 1814

TIM34

Timer 1 Counter Register 34

0x01C2 1818

PRD12

Timer 1 Period Register 12

0x01C2 181C

PRD34

Timer 1 Period Register 34

0x01C2 1820

TCR

Timer 1 Control Register

0x01C2 1824

TGCR

Timer 1 Global Control Register

0x01C2 1828 - 0x01C2 1BFF

Reserved

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TMS320C6421 Datasheet(PDF) 207 Page - Texas Instruments

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