C8051F020DK Silicon Laboratories Inc, C8051F020DK Datasheet - Page 22
![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
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C8051F020/1/2/3
1.1.
1.1.1. Fully 8051 Compatible
The C8051F020 family utilizes Silicon Labs' proprietary CIP-51 microcontroller core. The CIP-51 is fully compati-
ble with the MCS-51™ instruction set; standard 803x/805x assemblers and compilers can be used to develop soft-
ware. The core has all the peripherals included with a standard 8052, including five 16-bit counter/timers, two full-
duplex UARTs, 256 bytes of internal RAM, 128 byte Special Function Register (SFR) address space, and 8/4 byte-
wide I/O Ports.
1.1.2. Improved Throughput
The CIP-51 employs a pipelined architecture that greatly increases its instruction throughput over the standard 8051
architecture. In a standard 8051, all instructions except for MUL and DIV take 12 or 24 system clock cycles to exe-
cute with a maximum system clock of 12-to-24 MHz. By contrast, the CIP-51 core executes 70% of its instructions in
one or two system clock cycles, with only four instructions taking more than four system clock cycles.
The CIP-51 has a total of 109 instructions. The table below shows the total number of instructions that require each
execution time.
With the CIP-51's maximum system clock at 25 MHz, it has a peak throughput of 25 MIPS. Figure 1.5 shows a com-
parison of peak throughputs of various 8-bit microcontroller cores with their maximum system clocks.
22
Number of Instructions
Clocks to Execute
CIP-51™ Microcontroller Core
Figure 1.5. Comparison of Peak MCU Execution Speeds
25
20
15
10
5
26
1
Silicon Labs
(25MHz clk)
CIP-51
50
2
(33MHz clk)
PIC17C75x
2/3
Rev. 1.4
5
Microchip
14
3
(33MHz clk)
Philips
80C51
3/4
7
4
3
(16MHz clk)
ADuC812
8051
4/5
1
5
2
8
1
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