MC68HC908AZ32ACFU MOTOROLA [Motorola, Inc], MC68HC908AZ32ACFU Datasheet - Page 292
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MC68HC908AZ32ACFU
Manufacturer Part Number
MC68HC908AZ32ACFU
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908AZ32ACFU.pdf
(468 pages)
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Timer Interface Module A (TIMA)
18.5 Interrupts
Advance Information
292
(TASC0) controls and monitors the PWM signal from the linked
channels. MS0B takes priority over MS0A.
Setting MS2B links channels 2 and 3 and configures them for buffered
PWM operation. The TIMA channel 2 registers (TACH2H–TACH2L)
initially control the buffered PWM output. TIMA status control register 2
(TASC2) controls and monitors the PWM signal from the linked
channels. MS2B takes priority over MS2A.
Setting MS4B links channels 4 and 5 and configures them for buffered
PWM operation. The TIMA channel 4 registers (TACH4H–TACH4L)
initially control the buffered PWM output. TIMA status control register 4
(TASC4) controls and monitors the PWM signal from the linked
channels. MS4B takes priority over MS4A.
Clearing the toggle-on-overflow bit, TOVx, inhibits output toggles on
TIMA overflows. Subsequent output compares try to force the output to
a state it is already in and have no effect. The result is a 0% duty cycle
output.
Setting the channel x maximum duty cycle bit (CHxMAX) and setting the
TOVx bit generates a 100% duty cycle output (see
Status and Control Registers
The following TIMA sources can generate interrupt requests:
Freescale Semiconductor, Inc.
•
•
For More Information On This Product,
TIMA overflow flag (TOF) — The TOF bit is set when the TIMA
counter reaches the modulo value programmed in the TIMA
counter modulo registers. The TIMA overflow interrupt enable bit,
TOIE, enables TIMA overflow CPU interrupt requests. TOF and
TOIE are in the TIMA status and control register.
TIMA channel flags (CH5F–CH0F) — The CHxF bit is set when an
input capture or output compare occurs on channel x. Channel x
TIMA CPU interrupt requests are controlled by the channel x
interrupt enable bit, CHxIE.
Timer Interface Module A (TIMA)
Go to: www.freescale.com
on page 299).
68HC908AZ32A — Rev 0.0
TIMA Channel
MOTOROLA
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