Z8F022ASJ020SC Zilog, Z8F022ASJ020SC Datasheet - Page 141
Z8F022ASJ020SC
Manufacturer Part Number
Z8F022ASJ020SC
Description
IC ENCORE XP MCU FLASH 2K 28SOIC
Manufacturer
Zilog
Series
Encore!® XP®r
Specifications of Z8F022ASJ020SC
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
2KB (2K x 8)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
512 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-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
269-3355
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Part Number:
Z8F022ASJ020SC
Manufacturer:
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Quantity:
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Table 71. ADC Control Register 0 (ADCCTL0)
ADC Control Register Definitions
BITS
FIELD
RESET
R/W
ADDR
PS022825-0908
Warning:
ADC Control Register 0
CEN
R/W
7
0
The ADC Control Register 0 (ADCCTL0) selects the analog input channel and initiates
the analog-to-digital conversion. It also selects the voltage reference configuration.
CEN—Conversion Enable
0 = Conversion is complete. Writing a 0 produces no effect. The ADC automatically clears
this bit to 0 when a conversion is complete.
1 = Begin conversion. Writing a 1 to this bit starts a conversion. If a conversion is already
in progress, the conversion restarts. This bit remains 1 until the conversion is complete.
REFSELL—Voltage Reference Level Select Low Bit; in conjunction with the High bit
(REFSELH) in
voltage reference; the following details the effects of {REFSELH, REFSELL}; note that
this reference is independent of the Comparator reference.
00= Internal Reference Disabled, reference comes from external pin
01= Internal Reference set to 1.0 V
10= Internal Reference set to 2.0 V (default)
11= Reserved
REFOUT
0 = Reference buffer is disabled; Vref pin is available for GPIO or analog functions
1 = The internal ADC reference is buffered and driven out to the Vref pin
CONT
0 = Single-shot conversion. ADC data is output once at completion of the 5129 system
clock cycles (measurements of the internal temperature sensor take twice as long)
1 = Continuous conversion. ADC data updated every 256 system clock cycles after an
initial 5129 clock conversion (measurements of the internal temperature sensor take twice
as long)
When the ADC is used with an external reference ({REFSELH,REFSELL}=00), the
REFOUT bit must be set to 0.
REFSELL REFOUT
R/W
—
6
0
Internal Reference Output Enable
ADC Control/Status Register
R/W
5
0
CONT
R/W
4
0
F70H
1, this determines the level of the internal
R/W
3
0
Z8 Encore! XP
R/W
2
0
ANAIN[3:0]
Product Specification
Analog-to-Digital Converter
R/W
1
0
®
F082A Series
R/W
0
0
130
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