C8051T630 Datasheet, PDF (215/221 Pages) Silicon Laboratories – Mixed-Signal Byte-Programmable EPROM MCU

C8051T630/1/2/3/4/5
C2 Register Definition 26.10. CRC0: CRC Byte 0
Bit
7
6
5
4
3
2
1
0
Name
CRC[7:0]
Type
R/W
Reset
0
0
0
0
0
0
0
0
C2 Address: 0xA9
Bit Name
Function
7:0 CRC[7:0] _{CRC Byte 0.}
A write to this register initiates a 16-bit CRC of one 256-byte block of EPROM mem-
ory. The byte written to CRC0 is the upper byte of the 16-bit address where the CRC
will begin. The lower byte of the beginning address is always 0x00. When complete,
the 16-bit result will be available in CRC1 (MSB) and CRC0 (LSB). See Section
“16.3. Program Memory CRC” on page 91.
C2 Register Definition 26.11. CRC1: CRC Byte 1
Bit
7
6
5
4
3
2
1
0
Name
CRC[15:8]
Type
R/W
Reset
0
0
0
0
0
0
0
0
C2 Address: 0xAA
Bit Name
Function
7:0 CRC[15:8] _{CRC Byte 1.}
A write to this register initiates a 32-bit CRC on the entire program memory space.
The CRC begins at address 0x0000. When complete, the 32-bit result is stored in
CRC3 (MSB), CRC2, CRC1, and CRC0 (LSB). See Section “16.3. Program Memory
CRC” on page 91.
Rev. 1.0
215