C8051F020DK Silicon Laboratories Inc, C8051F020DK Datasheet - Page 162
![DEV KIT FOR F020/F021/F022/F023](/photos/9/23/92314/c8051f020dk_sml.jpg)
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
- Current page: 162 of 272
- Download datasheet (2Mb)
C8051F020/1/2/3
The C8051F020/1/2/3 devices have a wide array of digital resources which are available through the four lower I/O
Ports: P0, P1, P2, and P3. Each of the pins on P0, P1, P2, and P3, can be defined as a General-Purpose I/O (GPIO) pin
or can be controlled by a digital peripheral or function (like UART0 or /INT1 for example), as shown in Figure 17.2.
The system designer controls which digital functions are assigned pins, limited only by the number of pins available.
This resource assignment flexibility is achieved through the use of a Priority Crossbar Decoder. Note that the state of
a Port I/O pin can always be read from its associated Data register regardless of whether that pin has been assigned to
a digital peripheral or behaves as GPIO. The Port pins on Port 1 can be used as Analog Inputs to ADC1.
An External Memory Interface which is active during the execution of a MOVX instruction whose target address
resides in off-chip memory can be active on either the lower Ports or the upper Ports. See
DATA MEMORY INTERFACE AND ON-CHIP XRAM” on page 145
Memory Interface.
The upper Ports (available on C8051F020/2) can be byte-accessed as GPIO pins.
162
Highest
Priority
Lowest
Priority
Latches
Port
T2, T2EX,
/SYSCLK
CNVSTR
T4,T4EX
Comptr.
Outputs
UART0
UART1
SMBus
T0, T1,
/INT0,
/INT1
PCA
P0
P1
P2
P3
SPI
(P0.0-P0.7)
(P1.0-P1.7)
(P2.0-P2.7)
(P3.0-P3.7)
Figure 17.2. Lower Port I/O Functional Block Diagram
8
8
8
8
2
4
2
2
6
2
8
XBR2, P1MDIN
XBR0, XBR1,
Crossbar
Decoder
To External
Registers
Priority
Rev. 1.4
Digital
Interface
Memory
(EMIF)
8
8
8
8
P0MDOUT, P1MDOUT,
P2MDOUT, P3MDOUT
Registers
for more information about the External
ADC1
Input
Cells
Cells
Cells
Cells
To
I/O
I/O
I/O
I/O
P0
P1
P2
P3
Section “16. EXTERNAL
External
Pins
P0.0
P0.7
P1.0
P1.7
P2.0
P2.7
P3.0
P3.7
Highest
Lowest
Priority
Priority
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