C8051F800DK Silicon Laboratories Inc, C8051F800DK Datasheet - Page 95

• Manufacturer Part Number: C8051F800DK
• Description: KIT DEV C8051F800
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F800DK

• Contents: Board, Cables, CD, Debugger, Power Supply
• Processor To Be Evaluated: C8051F800
• Data Bus Width: 16 bit
• Interface Type: USB
• Operating Supply Voltage: 7 V to 15 V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: C8051F8xx
• Lead Free Status / Rohs Status: Supplier Unconfirmed
• Other names: 336-1797

16. In-System Device Identification
The C8051F80x-83x has SFRs that identify the device family and derivative. These SFRs can be read by
firmware at runtime to determine the capabilities of the MCU that is executing code. This allows the same
firmware image to run on MCUs with different memory sizes and peripherals, and dynamically changing
functionality to suit the capabilities of that MCU.
In order for firmware to identify the MCU, it must read three SFRs. HWID describes the MCU’s family,
DERIVID describes the specific derivative within that device family, and REVID describes the hardware
revision of the MCU.
SFR Definition 16.1. HWID: Hardware Identification Byte
SFR Address = 0xB5
Name
Reset
Bit
7:0
Type
Bit
HWID[7:0]
Name
R
7
0
Hardware Identification Byte.
Describes the MCU family.
0x23: Devices covered in this document (C8051F80x-83x)
R
6
0
R
5
1
Rev. 1.0
R
4
0
HWID[7:0]
Description
R
3
0
C8051F80x-83x
R
2
0
R
1
1
R
0
1
95