SRT512-W4/1GE STMicroelectronics, SRT512-W4/1GE Datasheet - Page 31

• Manufacturer Part Number: SRT512-W4/1GE
• Manufacturer: STMicroelectronics

Specifications of SRT512-W4/1GE

• Operating Temperature (max): 85C
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Supplier Unconfirmed

SRT512
8.4
Select(Chip_ID) command
Command code = 0Eh
The Select() command allows the SRT512 to enter the Selected state. Until this command is
issued, the SRT512 will not accept any other command, except for Initiate(), Pcall16() and
Slot_marker(). The Select() command returns the 8 bits of the Chip_ID value. An SRT512 in
Selected state, that receives a Select() command with a Chip_ID that does not match its
own is automatically switched to Deselected state.
Figure 31. Select request format
Request parameter:
●
Figure 32. Select response format
Response parameters:
●
Figure 33. Select frame exchange between reader and SRT512
Reader
SRT512
8-bit Chip_ID stored during the anticollision sequence
Chip_ID of the selected tag. Must be equal to the transmitted Chip_ID
SOF
SOF
SOF
0Eh
Select
0Eh
Chip_ID
Chip_ID
8 bits
CRC L
Doc ID 13277 Rev 4
Chip_ID
8 bits
CRC H EOF
8 bits
CRC L
<-t 0 -> <-t 1 ->
8 bits
CRC L
SOF Chip_ID
CRC H
8 bits
CRC H
8 bits
SRT512 commands
CRC L CRC H EOF
EOF
EOF
AI07671
AI07677b
AI13510b
31/46