C8051F020DK Silicon Laboratories Inc, C8051F020DK Datasheet - Page 30
C8051F020DK
Manufacturer Part Number
C8051F020DK
Description
DEV KIT FOR F020/F021/F022/F023
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Datasheet
1.C8051F020DK.pdf
(272 pages)
Specifications of C8051F020DK
Contents
Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
Processor To Be Evaluated
C8051F02x
Interface Type
USB
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F020
Silicon Family Name
C8051F02x
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
Silicon Laboratories C8051 F020/021/022/023
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1200
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F020DK
Manufacturer:
SiliconL
Quantity:
10
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C8051F020/1/2/3
1.9.
Each C8051F020/1/2/3 MCU has two 12-bit DACs and two comparators on chip. The MCU data and control inter-
face to each comparator and DAC is via the Special Function Registers. The MCU can place any DAC or comparator
in low power shutdown mode.
The comparators have software programmable hysteresis. Each comparator can generate an interrupt on its rising
edge, falling edge, or both; these interrupts are capable of waking up the MCU from sleep mode. The comparators'
output state can also be polled in software. The comparator outputs can be programmed to appear on the Port I/O pins
via the Crossbar.
The DACs are voltage output mode, and include a flexible output scheduling mechanism. This scheduling mecha-
nism allows DAC output updates to be forced by a software write or a Timer 2, 3, or 4 overflow. The DAC voltage
reference is supplied via the dedicated VREFD input pin on C8051F020/2 devices or via the internal voltage refer-
ence on C8051F021/3 devices. The DACs are especially useful as references for the comparators or offsets for the
differential inputs of the ADC.
30
Comparators and DACs
(Port I/O)
(Port I/O)
CP0+
CP0-
CP1+
CP1-
DAC0
DAC1
Figure 1.13. Comparator and DAC Diagram
+
-
+
-
CP0
CP1
CP0
CP1
DAC0
DAC1
REF
REF
CROSSBAR
Rev. 1.4
CP0
CP1
SFR's
(Data
Cntrl)
and
Interrupt
Handler
CIP-51
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