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LRI64
Get System Info
When receiving the Get System Info command,
the LRI64 send back its information data in the Re-
sponse.The Option_Flag is supported and must
be set to 0. The Get System Info can be issued in
both addressed and non addressed modes.
The Request Frame (
Figure 26.
) contains:
–
Request Flags (
Table 3.
and
Table 4.
)
–
Get System Info Command Code (2Bh,
Table
9.
)
–
Unique ID (Optional)
–
2-byte CRC (
Figure 15.
)
If there is no error, at the LRI64, the Response
Frame (
Figure 27.
) contains:
–
Response Flags (
Table 6.
)
–
Information Flags set to 0Fh, indicating the
four information fields that are present
(DSFID, AFI, Memory Size, IC Reference)
Unique ID
DSFID value (as written in block 9)
AFI value (as written in block 8)
Memory size: for the LRI64, there are 15
blocks (0Eh) of 1 byte (00h).
IC Reference: only the 6 most significant bits
are used. The product code of the LRI64 is
00 0101
b
=5
d
2-byte CRC (
Figure 15.
)
Otherwise, if there is an error, the Response
Frame (
Figure 28.
) contains:
–
Response Flags (01h,
Table 6.
)
–
Error Code (0Fh,
Table 7.
)
–
2-byte CRC (
Figure 15.
)
–
–
–
–
–
–
Figure 34. Get System Info, Request Frame Format
Figure 35. Get System Info, Response Frame Format, when Error_Flag is
not
Set
Figure 36. Get System Info, Response Frame Format, when Error_Flag is Set
Figure 37. Get System Info Frame Exchange between VCD and LRI64
AI09738
Request
SOF
Request
Flags
8 bits
Command
Code
8 bits
2Bh
UID
2-Byte
CRC
16 bits
Request
EOF
64 bits
AI09739
Response
SOF
Response
Flags
8 bits
00h
Information
Flags
8 bits
0Fh
UID
2-Byte
CRC
16 bits
Response
EOF
64 bits
DSFID
8 bits
AFI
8 bits
Memory
Size
16 bits
000Eh
IC
Ref
8 bits
000101xxb
AI09740
Response
SOF
Response
Flags
8 bits
01h
Error
Code
8 bits
0Fh
2-Byte
CRC
16 bits
Response
EOF
AI09724
VCD
VICC
t1
SOF
Get System
Info Request
EOF
SOF
Get System
Info Response
EOF