Z8F011ASH020EG2156 ZiLOG, Z8F011ASH020EG2156 Datasheet - Page 89

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Z8F011ASH020EG2156

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

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:
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 value.
4. Enable the timer interrupt (if appropriate) and set the timer interrupt priority by writ-
5. Configure the associated GPIO port pin (if using the timer output function) for the
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 calculated with the following equation:
Continuous Mode Time-Out Period (s)
If an initial starting value other than
registers, use the ONE-SHOT Mode equation 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 determines whether the count occurs on the rising edge or the fall-
ing 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
The input frequency of the timer input signal must not exceed one-fourth the system
clock frequency.
0001H
timer reload in CONTINUOUS Mode, counting always begins at the reset value of
0001H
ing to the relevant interrupt registers.
timer output alternate function.
Disable the timer
Configure the timer for CONTINUOUS Mode
Set the prescale value
If using the timer output Alternate function, set the initial output level (High or
Low)
0001H
). This action only affects the first pass in CONTINUOUS Mode. After the first
.
and counting resumes. Additionally, if the timer output alternate function
0001H
=
------------------------------------------------------------------------
System Clock Frequency (Hz)
is loaded into the Timer High and Low Byte
Reload Value Prescale
Z8 Encore!
Product Specification
®
F0830 Series
Operation
71

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