Datasheet

Section 14 CRC Operation Circuit (CRC)
Rev. 3.00 Sep. 28, 2009 Page 322 of 710
REJ09B0384-0300
CRCCR
CRCDORH
CRCDORL
CRCDOR clearing
1. Write H'87 to CRCCR
1
7
0 0 0 01
0
7
0
7
0
7
0
1
1
0 0 0 0 0 000
0 0 0 0 0 000
CRCDIR
CRCDORH
CRCDORL
CRC code generation
2. Write H'F0 to CRCDIR
1 1 1 1 0 000
1 1 1 0 1 111
0 0 0 1 1 111
CRC code = H'EF1F
CRC code
Output
Data
3. Read from CRCDOR
7
7
0FF1FE
7
00 0
4. Serial transmission (MSB first)
1 1 1 1 0 0
0
0
1 1 1 0 1 11
1
0 0 0 1 1 11
1
Figure 14.3 MSB-First Data Transmission