Z8FMC04100 ZILOG [Zilog, Inc.], Z8FMC04100 Datasheet - Page 117

• Manufacturer Part Number: Z8FMC04100
• Description: Z8 Encore-R Motor Control Flash MCUs
• Manufacturer: ZILOG [Zilog, Inc.]

PS024604-1005
Note:
Triggered One-Shot Mode Time-Out Period(s) =
2. Write to the Timer High and Low Byte registers to set the starting count value.
3. Write to the Timer Reload High and Low Byte registers to set the reload value.
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. Counting does not start until
The timer period is calculated by the following equation (Start Value is typically = 1):
The one-shot delay from input trigger to output includes the above-defined time-out
period, plus an additional delay of 2–3 system clock cycles, due to the synchronization of
the input trigger.
Continuous Mode
In CONTINUOUS mode, the timer counts up to the 16-bit reload value stored in the Timer
Reload High and Low Byte registers. After reaching the reload value, the timer generates
an interrupt, the count value in the Timer High and Low Byte registers is reset to
and counting resumes. Also, if the Timer Output alternate function is enabled, the Timer
Output pin changes state (from Low to High or from High to Low) after timer reload.
The steps for configuring a timer for CONTINUOUS mode and initiating the count are as
follows:
1. Write to the Timer Control registers to:
c. Set the prescale value.
d. If using the Timer Output alternate function, set the initial output level (High or
e. Set the INTERRUPT mode.
to the relevant interrupt registers.
Timer Output alternate function.
the appropriate input transition occurs.
a. Disable the timer.
b. Configure the timer for CONTINUOUS mode.
c. Set the prescale value.
Low) via the
TPOL
bit.
P R E L I M I N A R Y
(Reload Value – Start Value + 1) x Prescaler
System Clock Frequency (Hz)
Z8FMC16100 Series Flash MCU
Product Specification
Timer Operating Modes
0001h
,
95