TMS370 datasheet(25/77 Pages) TI

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TMS370Cx5x

8-BIT MICROCONTROLLER

SPNS010F – DECEMBER 1986 – REVISED FEBRUARY 1997

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

timer 1 module (continued)

T1IC/CR

Edge

Select

16-Bit

Counter

T1EVT

MUX

16-Bit

T1PWM

PWM

Toggle

16-Bit

WatchdogCounter

(Aux. Timer)

Interrupt

Logic

Capt/Comp

16-Bit

Compare

Interrupt

Logic

8-Bit

Prescaler

Figure 5. Timer 1 Block Diagram

D Three T1 I/O pins:

–

T1IC/CR: T1 input capture / counter reset input pin, or general-purpose bidirectional I/O pin

–

T1PWM: T1 pulse-width-modulation (PWM) output pin, or general-purpose bidirectional I/O pin

–

T1EVT: T1 event input pin, or general-purpose bidirectional I/O pin

D Two operation modes:

–

Dual-compare mode: Provides PWM signal

–

Capture/compare mode: Provides input capture pin

D One 16-bit general-purpose resettable counter

D One 16-bit compare register with associated compare logic

D One 16-bit capture/compare register, which, depending on the mode of operation, operates as either a

capture or compare register

D One 16-bit WD counter can be used as an event counter, a pulse accumulator, or an interval timer if

watchdog feature is not needed.

D Prescaler/clock sources that determine one of eight clock sources for general-purpose timer

D Selectable edge-detection circuitry that, depending on the mode of operation, senses active transitions on

the input capture pins (T1IC/CR)

TMS370 Datasheet(PDF) 25 Page - Texas Instruments

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