mc68hc08az60 Freescale Semiconductor, Inc, mc68hc08az60 Datasheet - Page 266

• Manufacturer Part Number: mc68hc08az60
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

T imer Interface Module B(TIMB)
TIMB Channel
Registers
MC68HC08AZ60 — Rev 1.0
266
CHxMAX — Channel x Maximum Duty Cycle Bit
These read/write registers contain the captured TIMB counter value of
the input capture function or the output compare value of the output
compare function. The state of the TIMB channel registers after reset is
unknown.
In input capture mode (MSxB–MSxA = 0:0), reading the high byte of the
TIMB channel x registers (TBCHxH) inhibits input captures until the low
byte (TBCHxL) is read.
In output compare mode (MSxB–MSxA 0:0), writing to the high byte of
the TIMB channel x registers (TBCHxH) inhibits output compares and
the CHxF bit until the low byte (TBCHxL) is written.
PTEx/TCHx
CHxMAX
Freescale Semiconductor, Inc.
When the TOVx bit is at logic 0, setting the CHxMAX bit forces the
duty cycle of buffered and unbuffered PWM signals to 100%. As
Figure 8
or cleared. The output stays at the 100% duty cycle level until the
cycle after CHxMAX is cleared.
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Timer Interface Module B (TIMB)
shows, the CHxMAX bit takes effect in the cycle after it is set
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PERIOD
OUTPUT
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Figure 8. CHxMAX Latency
COMPARE
OUTPUT
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COMPARE
OUTPUT
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COMPARE
OUTPUT
MOTOROLA
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