TMS370 datasheet(32/77 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 2A module (continued)

16–Bit

INT

Logic

Capt/Comp

16–Bit

Capture

Edge

Detect

T2AEVT

PWM

Toggle

T2AIC2/PWM

(Dual-Compare Mode)

Edge

Detect

T2AIC1/CR

T2AIC2/PWM

16–Bit

Compare

16–Bit

Counter

Clock

Select

(Dual-Capture Mode)

Figure 11. Timer 2A Block Diagram

The T2A module features include the following:

D Three T2A I/O pins:

–

T2AIC1/CR: T2A input-capture 1 / counter-reset input pin, or general-purpose bidirectional I/O pin

–

T2AIC2/PWM: T2A input-capture 2 / pulse-width-modulation (PWM) output pin, or general-purpose

bidirectional I/O pin

–

T2AEVT: Timer 2A event-input pin, or general-purpose bidirectional I/O pin

D Two operational modes:

–

Dual-compare mode: Provides PWM signal

–

Dual-capture 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 register with associated capture logic

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

capture or compare register

D T2A clock sources can be any of the following:

–

System clock

–

No clock (the counter is stopped)

–

External clock synchronized to the system clock (event counter)

–

System clock while external input is high (pulse accumulation)

TMS370 Datasheet(PDF) 32 Page - Texas Instruments

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