Z8F16800144ZCOG Zilog, Z8F16800144ZCOG Datasheet - Page 105
Z8F16800144ZCOG
Manufacturer Part Number
Z8F16800144ZCOG
Description
KIT DEV FOR Z8F642 MCU 44 PIN
Manufacturer
Zilog
Series
Z8 Encore!®r
Type
MCUr
Specifications of Z8F16800144ZCOG
Contents
Hardware, Software and Documentation
For Use With/related Products
Z8F642
For Use With
269-4661 - KIT ACC ETHERNET SMART CABLE
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
269-4678
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- Download datasheet (19Mb)
PS025011-1010
Caution:
6. If desired, enable the timer interrupt and set the timer interrupt priority by writing to
7. If using the Timer Output function, configure the associated GPIO port pin for the
8. Write to the Timer Control 1 register to enable the timer and initiate counting.
In CONTINUOUS mode, the timer clock always provides the timer input. The timer
period is given by the following equation:
If an initial starting value other than
registers, the ONE-SHOT mode equation must be used to determine the first timeout
period.
COUNTER Mode
In COUNTER mode, the timer counts input transitions from a GPIO port pin. The timer
input is taken from the GPIO Port pin Timer Input alternate function. The TPOL bit in the
Timer Control 1 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.
On 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 0001H and counting resumes. Also, 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.
Follow the steps below for configuring a timer for COUNTER mode and initiating
the count:
1. Write to the Timer Control 1 register to:
2. Write to the Timer Control 2 register to choose the timer clock source.
3. Write to the Timer Control 0 register to set the timer interrupt configuration field
The input frequency of the Timer Input signal must not exceed one-fourth the timer clock
frequency.
the relevant interrupt registers.
Timer Output alternate function.
–
–
–
TICONFIG.
CONTINUOUS Mode Time-Out Period (s)
Disable the timer.
Configure the timer for COUNTER mode.
Select either the rising edge or falling edge of the Timer Input signal for the count.
This also sets the initial logic level (High or Low) for the Timer Output Alternate
Function. However, the Timer Output function need not be enabled.
P R E L I M I N A R Y
0001H
=
is loaded into the Timer High and Low Byte
-------------------------------------------------------------------------- -
Timer Clock Frequency (Hz)
Reload Value Prescale
Z8 Encore! XP
Product Specification
®
F1680 Series
Timers
91
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