C8051F850-B-GM Datasheet, PDF (136/290 Pages) Silicon Laboratories – Low-Cost 8-bit MCU Family with up to 8 kB of Flash

C8051F85x/86x
Register 18.5. CRC0CNT: CRC0 Automatic Flash Sector Count
Bit
7
6
5
4
3
2
1
0
Name CRCDN
Reserved
CRCCNT
Type
R
R
RW
Reset
1
0
0
0
0
0
0
0
SFR Address: 0xD3
Table 18.6. CRC0CNT Register Bit Descriptions
Bit
Name
Function
7
CRCDN 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.
6:5
Reserved Must write reset value.
4:0
CRCCNT Automatic CRC Calculation Block Count.
These bits specify the number of flash blocks to include in an automatic CRC calculation.
The last address of the last flash block included in the automatic CRC calculation is
(CRCST+CRCCNT) x Block Size - 1. The block size is 256 bytes.
140
Preliminary Rev 0.6