User's Manual

46 | P a g e www.eccel.co.uk
Command description
Argument
Size
Value
Description
Command ID
1
0x76
MFDF_READ_RECORD
File number
1
X
File number inside application
Record number
2
X
Record number, 2
-
bytes LSB value
Data length
2
X
Read data length, 2
-
bytes LSB value
Response description
ACK
1
0x00
Command ID
1
0x76
MFDF_READ_RECORD
Example:
HOST=>READER: 0x76 – MFDF_READ_RECORD
0x01 – file number
0x00 0x01 – record number
0x08 0x00 – eighth bytes to read
READER=>HOST: 0x00 – ACK byte
0x76 – related command code MFDF_READ_RECORD
0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 - data
5.5.24 Clear records (0x77)
This command resets cyclic or lineal record files. It takes as an argument the file number.
Command description
Argument
Size
Value
Description
Command ID
1
0x77
MFDF_CLEAR_RECORDS
File number
1
X
File number inside
application
Response description
ACK
1
0x00
Command ID
1
0x77
MFDF_CLEAR_RECORDS
Example:
HOST=>READER: 0x77 – MFDF_CLEAR_RECORDS
0x01 – file number
READER=>HOST: 0x00 – ACK byte
0x77 – related command code MFDF_CLEAR_RECORDS
5.5.25 Delete file (0x78)
This command permanently deactivates a file within the file directory of the currently selected application. It
takes as an argument the file number.
Command description
Argument
Size
Value
Description
Command ID
1
0x78
MFDF_DELETE_FILE
File number
1
X
File number inside application
Response description
ACK
1
0x00
Command ID
1
0x78
MFDF_DELETE_FILE