C8051F997-GUR Silicon Labs, C8051F997-GUR Datasheet - Page 153

• Manufacturer Part Number: C8051F997-GUR
• Description: 8-bit Microcontrollers - MCU 8kB 14-CH CDC
• Manufacturer: Silicon Labs

Specifications of C8051F997-GUR

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit

14.4. Determining the Device Part Number at Run Time
In many applications, user software may need to determine the MCU part number at run time in order to
determine the hardware capabilities. The part number can be determined by reading the value of the
DEVICEID Special Function Register.

The value of the DEVICEID register can be decoded as follows:

0xD0—C8051F990
0xD1—C8051F991
0xD6—C8051F996
0xD2—C8051F997

0xD3—C8051F980
0xD4—C8051F981
0xD5—C8051F982
0xD7—C8051F983
0xD8—C8051F985
0xD9—C8051F986
0xDA—C8051F987
0xDB—C8051F988
0xDC—C8051F989
SFR Definition 14.1. DEVICEID: Device Identification
SFR Page = 0xF; SFR Address = 0xE3
Name
Reset
Bit
7:0
Type
Bit
DEVICEID[7:0]
Name
7
0
6
0
Device Identification.
These bits contain a value that can be decoded to determine the device part
number.
5
0
Rev. 1.1
DEVICEID[7:0]
4
0
R/W
C8051F99x-C8051F98x
Function
3
0
2
0
1
0
0
0
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