TMS370C756 Datasheet, PDF (32/75 Pages) Texas Instruments – 8-BIT MICROCONTROLLER

TMS370Cx5x
8-BIT MICROCONTROLLER
SPNS010F – DECEMBER 1986 – REVISED FEBRUARY 1997
timer 2A module (continued)
T2AIC1/CR
T2AIC2/PWM
(Dual-Capture Mode)
Edge
Detect
Edge
Detect
16–Bit
Capture
Register
T2AEVT
Clock
Select
16–Bit
Counter
16–Bit
Capt/Comp
Register
INT
Logic
16
16–Bit
Compare
Register
PWM
Toggle
T2AIC2/PWM
(Dual-Compare 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)
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