C8051F85X86X Datasheet, PDF (61/290 Pages) Silicon Laboratories – Low-Cost 8-bit MCU Family with up to 8 kB of Flash

C8051F85x/86x
11. Device Identification
The C8051F85x/86x has SFRs that identify the device family, derivative, and revision. 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 change functionality to suit
the capabilities of that MCU.
11.1. Device Identification Registers
Register 11.1. DEVICEID: Device Identification
Bit
7
6
5
4
3
2
1
0
Name
DEVICEID
Type
R
Reset
0
0
1
1
0
0
0
0
SFR Address: 0xB5
Table 11.1. DEVICEID Register Bit Descriptions
Bit
Name
Function
7:0 DEVICEID Device ID.
This read-only register returns the 8-bit device ID: 0x30 (C8051F85x/86x).
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