SRI4K-A3T/1GE STMicroelectronics, SRI4K-A3T/1GE Datasheet - Page 23

• Manufacturer Part Number: SRI4K-A3T/1GE
• Manufacturer: STMicroelectronics

Specifications of SRI4K-A3T/1GE

• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Compliant

SLOT_MARKER(SN) Command
Command Code = x6h
The SRI4K must be in INVENTORY state to inter-
pret the SLOT_MARKER(SN) command.
The SLOT_MARKER Byte code is divided into two
parts:
–
–
Figure 31. SLOT_MARKER Request Format
Request parameter:
–
Figure 32. SLOT_MARKER Response Format
Response parameters:
–
Figure 33. SLOT_MARKER Frame Exchange Between Reader and SRI4K
b
with fixed value 6.
b
(SN). They assume a value between 1 and 15.
x: Slot number
Chip_ID of the SRI4K
3
7
Reader
SRI4K
to b
to b
4
0
: 4 bits known as the SLOT_NUMBER
: 4-bit command code
SOF
SOF
X6h
SOF
CRC L
Chip_ID
8 bits
CRC H EOF
SLOT_MARKER
X6h
<-t 0 ->
8 bits
CRC L
On receiving the SLOT_MARKER() command, the
SRI4K compares its CHIP_SLOT_NUMBER value
with the SLOT_NUMBER value given in the com-
mand code. If they match, the SRI4K returns its
Chip_ID value. If not, the SRI4K 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 SRI4K device in INVENTORY state
present in the reader field range.
<-t 1 ->
8 bits
CRC L
The value 0 is reserved by the PCALL16()
command.
SOF
CRC H
8 bits
Chip_ID
CRC H
8 bits
CRC L CRC H
EOF
EOF
EOF
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