Z8F0123SB005EG Zilog, Z8F0123SB005EG Datasheet - Page 79

• Manufacturer Part Number: Z8F0123SB005EG
• Description: IC ENCORE MCU FLASH 1K 8SOIC
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F0123SB005EG

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, POR, PWM, WDT
• Number Of I /o: 6
• Program Memory Size: 1KB (1K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: 269-3757

PS024314-0308
6. Write to the Timer Control register to enable the timer and initiate counting.
In ONE-SHOT mode, the system clock always provides the timer input. The timer period
is given by the following equation:
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. The timer input is the system clock. Upon
reaching the Reload value, the timer generates an interrupt, the count value in the Timer
High and Low Byte registers is reset to
Output alternate function is enabled, the Timer Output pin changes state (from Low to
High or from High to Low) at timer Reload.
Follow the steps below to configure a timer for CONTINUOUS mode and to initiate 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 (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
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 given by the following equation:
If an initial starting value other than
registers, use the ONE-SHOT mode equation to determine the first time-out period.
–
–
–
–
0001H). This action only affects the first pass in CONTINUOUS mode. After the first
timer Reload in CONTINUOUS mode, counting always begins at the reset value of
0001H
writing to the relevant interrupt registers.
Timer Output alternate function.
ONE-SHOT Mode Time-Out Period (s)
CONTINUOUS Mode Time-Out Period (s)
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
0001H
is loaded into the Timer High and Low Byte
=
and counting resumes. Also, if the Timer
(
---------------------------------------------------------------------------------------------- -
=
Reload Value Start Value
----------------------------------------------------------------------- -
System Clock Frequency (Hz)
System Clock Frequency (Hz)
Reload Value Prescale
Z8 Encore! XP
–
Product Specification
×
®
F0823 Series
) Prescale
×
Timers
69