SRI512-A4S/1GE STMicroelectronics, SRI512-A4S/1GE Datasheet - Page 21
SRI512-A4S/1GE
Manufacturer Part Number
SRI512-A4S/1GE
Description
Manufacturer
STMicroelectronics
Datasheet
1.SRI512-A4S1GE.pdf
(47 pages)
Specifications of SRI512-A4S/1GE
Operating Temperature (max)
85C
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Compliant
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SRI512
5
SRI512 operation
All commands, data and CRC are transmitted to the SRI512 as 10-bit characters using ASK
modulation. The start bit of the 10 bits, b
SRI512 at the antenna is demodulated by the 10% ASK demodulator, and decoded by the
internal logic. Prior to any operation, the SRI512 must have been selected by a Select
command. Each frame transmitted to the SRI512 must start with a start of frame, followed
by one or more data characters, two CRC bytes and the final end of frame. When an invalid
frame is decoded by the SRI512 (wrong command or CRC error), the memory does not
return any error code.
When a valid frame is received, the SRI512 may have to return data to the reader. In this
case, data is returned using BPSK encoding, in the form of 10-bit characters framed by an
SOF and an EOF. The transfer is ended by the SRI512 sending the 2 CRC bytes and the
EOF.
Doc ID 13263 Rev 5
0
, is sent first. The command frame received by the
SRI512 operation
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