C8051F987-GMR Silicon Labs, C8051F987-GMR Datasheet - Page 175
C8051F987-GMR
Manufacturer Part Number
C8051F987-GMR
Description
8-bit Microcontrollers - MCU 8kB 512B RAM
Manufacturer
Silicon Labs
Datasheet
1.C8051F986-GUR.pdf
(322 pages)
Specifications of C8051F987-GMR
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
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SFR Definition 16.4. CRC0AUTO: CRC0 Automatic Control
SFR Page = All; SFR Address = 0x9E
Name
Reset
Bit
4:0
Type
7
6
5
Bit
CRC0ST[4:0]
CRCDONE
AUTOEN
AUTOEN
Unused
Name
R/W
7
0
CRCDONE
Automatic CRC Calculation Enable.
When AUTOEN is set to 1, any write to CRC0CN will initiate an automatic CRC
starting at Flash sector CRC0ST and continuing for CRC0CNT sectors.
CRCDONE Automatic CRC Calculation Complete.
Set to 0 when a CRC calculation is in progress. Code execution is stopped during
a CRC calculation; therefore, reads from firmware will always return 1.
Read = 0b; Write = Don’t Care.
Automatic CRC Calculation Starting Block.
These bits specify the Flash block to start the automatic CRC calculation. The
starting address of the first Flash block included in the automatic CRC calculation
is CRC0ST x Block Size.
Note: The block size is 256 bytes.
R
6
1
5
0
Rev. 1.1
4
0
C8051F99x-C8051F98x
Function
3
0
CRC0ST[4:0]
R/W
2
0
1
0
0
0
175
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