Z8F08200100KIT Zilog, Z8F08200100KIT Datasheet - Page 85

• Manufacturer Part Number: Z8F08200100KIT
• Description: DEV KIT FOR Z8 ENCORE 4K TO 8K
• Manufacturer: Zilog
• Series: Z8 Encore!®r
• Type: MCUr

Specifications of Z8F08200100KIT

• Contents: Evaluation Board, Cable, Power Supply, Software and Documentation
• Data Bus Width: 8 bit
• Interface Type: RS-485
• Silicon Manufacturer: Zilog
• Core Architecture: Z8 Encore
• Silicon Core Number: Z8F0822SJ020
• Silicon Family Name: XP F0822
• For Use With/related Products: Z8 Encore!™
• For Use With: 269-4661 - KIT ACC ETHERNET SMART CABLE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3183

PS022517-0508
Caution:
6. Write to the Timer Control Register to enable the timer and initiate counting.
In CONTINUOUS mode, the system 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 time-out
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 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.
Upon 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
enabled, the Timer Output pin changes state (from Low to High or from 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 Register to:
2. Write to the Timer High and Low Byte Registers to set the starting count value. This
3. Write to the Timer Reload High and Low Byte Registers to set the Reload value.
CONTINUOUS Mode Time-Out Period (s)
frequency.
–
–
–
only affects the first pass in COUNTER mode. After the first timer Reload in
COUNTER mode, counting always begins at the reset value of
COUNTER mode the Timer High and Low Byte Registers must be written with the
value
The input frequency of the Timer Input signal must not exceed one-fourth system clock
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 does not have to be enabled.
0001H
0001H
.
and counting resumes. Also, if the Timer Output alternate function is
0001H
=
is loaded into the Timer High and Low Byte
------------------------------------------------------------------------------ -
System Clock Frequency (Hz)
Reload Value
Z8 Encore! XP
x
Product Specification
Prescale
0001H
®
. Generally, in
F0822 Series
Timers
72