Z8F0813HJ005EG Zilog, Z8F0813HJ005EG Datasheet - Page 130

• Manufacturer Part Number: Z8F0813HJ005EG
• Description: IC Z8 ENCORE MCU FLASH 8K 28SSOP
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F0813HJ005EG

• 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: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Other names: 269-4182; Z8F0813HJ005EG

PS025203-0405
Interrupts
Calibration and Compensation
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 whenever a conversion has been completed and the
ADC is enabled.
When the ADC is disabled, an interrupt is not asserted; however, an interrupt pending
when the ADC is disabled is not cleared.
The Z8 Encore!
error, with the compensation data stored in Flash memory. Alternatively, user code can
perform its own calibration, storing the values into Flash themselves.
Factory Calibration
Devices that have been factory calibrated contain 9 bytes of calibration data in the Flash
option bit space. This data consists of 3 bytes for each reference type. See “ZiLOG Cali-
bration Bits” on page 137 for a list of input modes for which calibration data exists. There
is 1 byte for offset, 2 bytes for gain correction.
User Calibration
If the user has precision references available, its own external calibration can be per-
formed and storing the values into Flash themselves.
Software Compensation Procedure
The value read from the ADC high and low byte registers are uncompensated. The user
mode software must apply gain and offset correction to this uncompensated value for
maximum accuracy. The following formula yields the compensated value:
ADC
–
conversion, the ADC control logic performs the following operations:
–
–
to 0.
comp
An interrupt request is sent to the Interrupt Controller to indicate the conversion is
complete.
Writes the 11-bit two’s complement result to {ADCD_H[7:0], ADCD_L[7:5]}.
An interrupt request to the Interrupt Controller denoting conversion complete.
= (ADC
®
Z8F0823 Series ADC can be factory calibrated for offset error and gain
uncomp
- OFFCAL) + ((ADC
P R E L I M I N A R Y
uncomp
- OFFCAL)*GAINCAL)/2
Z8 Encore!
Product Specification
Analog-to-Digital Converter
®
Z8F0823 Series
16
113