Z8F011ASH020EG2156 ZiLOG, Z8F011ASH020EG2156 Datasheet - Page 91

• Manufacturer Part Number: Z8F011ASH020EG2156
• Description: 8-bit Microcontrollers - MCU 1K FLASH 256B RAM 16B NVDS
• Manufacturer: ZiLOG

Specifications of Z8F011ASH020EG2156

• Rohs: yes
• Core: eZ8
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 20 MHz
• Program Memory Size: 1 KB
• Data Ram Size: 256 B
• On-chip Adc: No
• Package / Case: SOIC-20
• Mounting Style: SMD/SMT
• Interface Type: UART
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 17
• Number Of Timers: 2
• Program Memory Type: Flash
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V

PS025113-1212
Caution:
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
is enabled, the timer output pin changes state (from Low to High or from High to Low) at
timer reload.
Observe the following steps for configuring a timer for COMPARATOR COUNTER
Mode and for 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.
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 timer
6. Write to the Timer Control Register to enable the timer.
In COMPARATOR COUNTER Mode, the number of comparator output transitions is cal-
culated with the following equation:
Comparator Output Transitions
The frequency of the comparator output signal must not exceed one-fourth the system
clock frequency.
–
–
–
action only affects the first pass in COMPARATOR COUNTER Mode. After the first
timer reload in COMPARATOR COUNTER Mode, counting always begins at the
reset value
and Low Byte registers must be written with the value
to the relevant interrupt registers.
output alternate function.
Disable the timer
Configure the timer for COMPARATOR COUNTER Mode.
Select either the rising edge or falling edge of the comparator output signal for the
count. This also sets the initial logic level (High or Low) for the timer output alter-
nate function. However, the timer output function is not required to be enabled.
0001H
0001H
and counting resumes. Additionally, if the timer output alternate function
. Generally, in COMPARATOR COUNTER Mode, the Timer High
=
Current Count Value Start Value
–
0001H
Z8 Encore!
Product Specification
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®
F0830 Series
Operation
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