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Section 14 CRC Operation Circuit (CRC)
1. Write H'87 to CRCCR
7
CRCCR
1
0
7
0
0
CRCDORH
CRCDORL
0
0
3. Read from CRCDOR
CRC code = H'EF1F
4. Serial transmission (MSB first)
7
Output
1
1
Rev. 1.00 Mar. 12, 2008 Page 500 of 1178
REJ09B0403-0100
0
0
0
0
1
1
1
CRCDOR clearing
0
0
0
0
0
0
0
0
0
0
0
0
0
Data
0
0
0
1
1
0
0
F
0
Figure 14.3 MSB-First Data Transmission
2. Write H'F0 to CRCDIR
7
CRCDIR
1
7
1
CRCDORH
CRCDORL
0
7
1
1
1
0
1
1
1
E
F
0
1
1
1
0
0
0
0
CRC code generation
0
1
1
0
1
1
1
1
0
0
1
1
1
1
1
CRC code
0
7
1
0
0
0
1
1
1
0
1
1
1
F
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