C8051F566-IMR Silicon Labs, C8051F566-IMR Datasheet - Page 91
![no-image](/images/no-image-200.jpg)
C8051F566-IMR
Manufacturer Part Number
C8051F566-IMR
Description
8-bit Microcontrollers - MCU 50 MIPS 16 kB 2 kB LIN 2.1 SPI
Manufacturer
Silicon Labs
Datasheet
1.C8051F556-IMR.pdf
(302 pages)
Specifications of C8051F566-IMR
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
- Current page: 91 of 302
- Download datasheet (2Mb)
10.4. Serial Number Special Function Registers (SFRs)
The C8051F55x/56x/57x devices include four SFRs, SN0 through SN3, that are pre-programmed during
production with a unique, 32-bit serial number. The serial number provides a unique identification number
for each device and can be read from the application firmware. If the serial number is not used in the appli-
cation, these four registers can be used as general purpose SFRs.
SFR Definition 10.7. SNn: Serial Number n
SFR Addresses: SN0 = 0xF9; SN1 = 0xFA; SN2 = 0xFB; SN3 = 0xFC; SFR Page = 0x0F;
Name
Reset
Bit
7:0
Type
Bit
SERNUMn[7:0] Serial Number Bits.
Name
7
The four serial number registers form a 32-bit serial number, with SN3 as the
most significant byte and SN0 as the least significant byte.
6
5
Varies—Unique 32-bit value
Rev. 1.1
SERNUMn[7:0]
4
R/W
Function
3
C8051F55x/56x/57x
2
1
0
91
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