z8fmc16100 ZiLOG Semiconductor, z8fmc16100 Datasheet - Page 106

• Manufacturer Part Number: z8fmc16100
• Description: Z8 Encore Motor Control Flash Mcus
• Manufacturer: ZiLOG Semiconductor

PS024611-0408
Caution:
Caution:
2. Write to the Timer High and Low Byte registers to set the starting count value (usually
3. Write to the Timer Reload High and Low Byte registers to set the reload period.
4. If appropriate, enable the timer interrupt and set the timer interrupt priority by writing
5. If using the Timer Output function, configure the associated GPIO port pin for the
6. Write to the Timer Control 1 register to enable the timer and initiate counting.
The timer period is calculated by the following equation:
If an initial starting value other than
registers, use the ONE-SHOT mode equation to determine the first timeout period.
COUNTER and COMPARATOR COUNTER Modes
In COUNTER mode, the timer counts input transitions from a GPIO port pin. The Timer
Input is taken from the associated GPIO port pin. The
register selects whether the count occurs on the rising edge or the falling edge of the Timer
Input signal. In COUNTER mode, the prescaler is disabled.
The input frequency of the Timer Input signal must not exceed one-fourth the system clock
frequency.
In COMPARATOR COUNTER mode, the timer counts output transitions from an analog
comparator output. Timer 0 takes its input from the output of the comparator. The
in the Timer Control 1 register selects whether the count occurs on the rising edge or the
falling edge of the comparator output signal. In COMPARATOR COUNTER mode, the
prescaler is disabled.
The frequency of the comparator output signal must not exceed one-fourth the system clock
frequency.
After reaching the reload value stored in the Timer Reload High and Low Byte registers,
the timer generates an interrupt, the count value in the Timer High and Low Byte registers
is reset to
If the Timer Output alternate function is enabled, the Timer Output pin changes state
(from Low to High or High to Low) at timer reload.
CONTINUOUS Mode Timeout Period (s)
0001h
timer reloads in CONTINUOUS mode, counting begins at the reset value of
to the relevant interrupt registers.
Timer Output alternate function.
0001h
). This setting only affects the first pass in CONTINUOUS mode. After the first
, and counting resumes.
0001h
is loaded into the Timer High and Low Byte
=
System Clock Frequency (Hz)
Reload Value x Prescaler
Z8FMC16100 Series Flash MCU
TPOL
bit in the Timer Control 1
Product Specification
Timer Operating Modes
0001h
TPOL
bit
.
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