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Checking Function of the Data Carrier's Memory
Data Carrier Memory
Check Command Example
1,2,3...
60
Address
0000
H
0001
H
First address
of the area
The number of
check block bytes
CRC (right digit)
CRC (left digit)
In the following example, the data in addresses 0010
on condition that the following data exists in these addresses.
1. Execute MDK1001005 (calculation processing) so that the CRC code
(5CD6
) of the data "123456" is written to addresses 0013
H
2. Execute MDC1001005 (collation processing). If the result coincides with
the data in the check code area, MD75 will be returned as a normal re-
sponse.
Check code calculation
area (the number of check
block bytes less two bytes)
Check code area
(two bytes)
0010
12
H
H
0011
34
H
H
0012
56
H
H
0013
H
0014
H
0010
12
H
H
0011
34
H
H
0012
56
H
H
5C
0013
H
H
D6
0014
H
H
Section 5-5
to 0012
are checked
H
H
and 0014
.
H
H
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