Z8F041APH020SG2156 ZiLOG, Z8F041APH020SG2156 Datasheet - Page 151

• Manufacturer Part Number: Z8F041APH020SG2156
• Description: 8-bit Microcontrollers - MCU 4K FLASH 1K RAM 128B NVDS
• Manufacturer: ZiLOG

Specifications of Z8F041APH020SG2156

• Rohs: yes
• Core: eZ8
• Processor Series: Z8F041xx
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 20 MHz
• Program Memory Size: 4 KB
• Data Ram Size: 1 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.7 V to 3.6 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: PDIP-20
• Mounting Style: Through Hole
• A/d Bit Size: 10 bit
• A/d Channels Available: 8
• Interface Type: UART
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 17
• Number Of Timers: 2
• Program Memory Type: Flash
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V

PS022827-1212
Bit
Field
RESET
R/W
Address
Bit
[7]
CEN
[6]
REFSELL
[5]
REFOUT
[4]
CONT
[3:0]
ANAIN[3:0]
ADC Control Register 0
Description
Conversion Enable
0 = Conversion is complete. Writing a 0 produces no effect. The ADC automatically clears
1 = Begin conversion. Writing a 1 to this bit starts a conversion. If a conversion is already in
Voltage Reference Level Select Low Bit
In conjunction with the High bit (REFSELH) in ADC Control/Status Register 1, this deter-
mines the level of the internal voltage reference; the following details the effects of {REF-
SELH, 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.
Internal Reference Output Enable
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 V
Caution: When the ADC is used with an external reference ({REFSELH,REFSELL}=00),
the REFOUT bit must be set to 0.
Conversion
0 = Single-shot conversion. ADC data is output once at completion of the 5129 system clock
1 = Continuous conversion. ADC data updated every 256 system clock cycles after an initial
Analog Input Select
These bits select the analog input for conversion. Not all Port pins in this list are available in
all packages for the Z8 Encore! XP F082A Series. For information about port pins available
with each package style, see the
able analog inputs. Usage of these bits changes depending on the buffer mode selected in
ADC Control/Status Register 1.
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.
this bit to 0 when a conversion is complete.
progress, the conversion restarts. This bit remains 1 until the conversion is complete.
cycles (measurements of the internal temperature sensor take twice as long).
5129 clock conversion (measurements of the internal temperature sensor take twice as
long).
REFSELL REFOUT
R/W
6
0
Table 73. ADC Control Register 0 (ADCCTL0)
R/W
5
0
P R E L I M I N A R Y
Pin Description
CONT
R/W
4
0
F70H
R/W
chapter on page 8. Do not enable unavail-
3
0
Z8 Encore! XP
ADC Control Register Definitions
R/W
2
0
ANAIN[3:0]
REF
Product Specification
pin.
R/W
1
0
®
F082A Series
R/W
0
0
134