Z8F042AHH020EC Zilog, Z8F042AHH020EC Datasheet - Page 81

• Manufacturer Part Number: Z8F042AHH020EC
• Description: IC ENCORE XP MCU FLASH 4K 20SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHH020EC

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 17
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3368

Operation
PS022825-0908
System
Control
Clock
Timer
Block
Data
Input
Bus
Timer Operating Modes
The timers are 16-bit up-counters. Minimum time-out delay is set by loading the value
0001H
to 1. Maximum time-out delay is set by loading the value
High and Low Byte registers and setting the prescale value to 128. If the Timer reaches
FFFFH
The timers can be configured to operate in the following modes:
ONE-SHOT Mode
In ONE-SHOT 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 and the count value in the Timer High
and Low Byte registers is reset to
counting.
Capture
Input
Input
Gate
, the timer rolls over to
into the Timer Reload High and Low Byte registers and setting the prescale value
Figure 9. Timer Block Diagram
Reload Register
PWM/Compare
16-Bit Counter
with Prescaler
Control
16-Bit
16-Bit
Timer
0000H
0001H
and continues counting.
. The timer is automatically disabled and stops
Z8 Encore! XP
Timer Block
Timer Output
0000H
Interrupt,
Control
PWM,
and
Product Specification
into the Timer Reload
®
F082A Series
Complement
Interrupt
Output
Output
Timer
Timer
Timer
Timers
70