Z8F042AHJ020SC00TR Zilog, Z8F042AHJ020SC00TR Datasheet - Page 136

• Manufacturer Part Number: Z8F042AHJ020SC00TR
• Description: IC ENCORE XP MCU FLASH 4K 28SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F042AHJ020SC00TR

• 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: 23
• 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 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Z8F042AHJ020SC00T

PS022825-0908
Interrupts
Calibration and Compensation
3. Write to the
4. When the first conversion in continuous operation is complete (after 5129 system
5. The ADC writes a new data result every 256 system clock cycles. For each completed
6. To disable continuous conversion, clear the CONT bit in the ADC Control Register
The ADC is able to interrupt the CPU when a conversion has been completed. When the
ADC is disabled, no new interrupts are asserted; however, an interrupt pending when the
ADC is disabled is not cleared.
The Z8 Encore! XP
error, with the compensation data stored in Flash memory. Alternatively, you can perform
your own calibration, storing the values into Flash themselves. Thirdly, the user code can
perform a manual offset calibration during DIFFERENTIAL mode operation.
The bit fields in the ADC Control register may be written simultaneously:
clock cycles, plus the 40 cycles for power-up, if necessary), the ADC control logic
performs the following operations:
conversion, the ADC control logic performs the following operations:
to 0.
–
–
–
–
–
–
–
–
–
Write to the
sources (different input pins available depending on the device).
Set CONT to 1 to select continuous conversion.
If the internal VREF must be output to a pin, set the
internal voltage reference must be enabled in this case.
Write the
internal voltage reference level or to disable the internal reference. The
REFSELH
Set CEN to 1 to start the conversions.
CEN resets to 0 to indicate the first conversion is complete. CEN remains 0 for
all subsequent conversions in continuous operation.
An interrupt request is sent to the Interrupt Controller to indicate the
conversion is complete.
Writes the 13-bit two’s complement result to {ADCD_H[7:0],
ADCD_L[7:3]}.
Sends an interrupt request to the Interrupt Controller denoting conversion
complete.
ADC Control Register 0
®
F082A Series ADC is factory calibrated for offset error and gain
REFSELL
bit is contained in
ANAIN[3:0]
bit of the pair {
field to select from the available analog input
to configure the ADC for continuous conversion.
ADC Control/Status Register
REFSELH, REFSELL
Z8 Encore! XP
Product Specification
REFEXT
Analog-to-Digital Converter
} to select the
1.
®
bit to 1. The
F082A Series
125