RX610 Group
21. CRC Calculator (CRC)
R01UH0032EJ0120 Rev.1.20
Page 681 of 1006
Feb 20, 2013
DORCLR Bit (CRCDOR Register Clear)
Write 1 to this bit so that the CRCDOR register is cleared to 0000h.
This bit is always read as 0.
21.2.2
CRC Data Input Register (CRCDIR)
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
0
0
0
0
0
0
0
0
Address: 0008 8281h
CRCDIR is an 8-bit readable/writable register, to which the bytes to be CRC-operated are written.
21.2.3
CRC Data Output Register (CRCDOR)
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Address: 0008 8282h
CRCDOR is a 16-bit readable/writable register that contains the result of CRC calculation.
In general, the value will be 0 if there is no CRC error when the calculated CRC code matches the CRC code that
continues on, for verification, from the transferred data.
When an 8-bit CRC (X
8
+ X
2
+ X + 1 polynomial) is in use, the valid CRC code is obtained in the lower-order byte (b7 to
b0). The higher-order byte (b15 to b8) is not be updated.