SRIX4K SRIX4K commands
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9.3 Slot_marker(SN) command
Command code = x6h
The SRIX4K must be in Inventory state to interpret the Slot_marker(SN) command.
The Slot_marker byte code is divided into two parts:
● b
3
to b
0
: 4-bit command code
with fixed value 6.
● b
7
to b
4
: 4 bits known as the Slot_number (SN). They assume a value between 1 and
15. The value 0 is reserved by the Pcall16() command.
On receiving the Slot_marker() command, the SRIX4K compares its Chip_slot_number
value with the Slot_number value given in the command code. If they match, the SRIX4K
returns its Chip_ID value. If not, the SRIX4K does not send any response.
The Slot_marker() command, used together with the Pcall16() command, allows the reader
to search for all the Chip_IDs when there are more than one SRIX4K device in Inventory
state present in the reader field range.
Figure 30. Slot_marker request format
Request parameter:
● x: Slot number
Figure 31. Slot_marker response format
Response parameters:
● Chip_ID of the SRIX4K
Figure 32. Slot_marker frame exchange between reader and SRIX4K
SOF SLOT_MARKER CRC
L
CRC
H
EOF
AI07675
X6h 8 bits 8 bits
SOF Chip_ID CRC
L
CRC
H
EOF
AI07671
8 bits 8 bits 8 bits
SOF X6h CRC
L
CRC
H
EOF
AI07676b
Reader
SRIX4K
SOF Chip_ID CRC
L
CRC
H
EOF
<-t
0
-><-t
1
->
