SLRC400 Datasheet, PDF (103/130 Pages) NXP Semiconductors – I·CODE Reader IC

Philips Semiconductors
I•CODE Reader IC
Product Specification Rev. 2.0 November 2001
SL RC400
16.4.5 STATE DIAGRAM FOR THE LABEL COMMUNICATION
Command =
(Transmit OR
Receive OR
Transceive)
Idle
(000)
CRoemcemiveand ₌
TxSOF
(001)
SOF transmitted
TxData
(010)
GoToRx1
(100)
next bit clock
PrepareRx
(101)
Data transmitted
RxWaitCounter
=0
TxEOF
(011)
AwaitingRx
(110)
Signal Strength >
MinLevel
EOF transmitted AND
Command = Transceive
Receiving
(111)
EOF transmitted AND
Command = Transmit
Frame Received
End of Receive frame &&
RxMultiple = 0 &&
TimeSlotPeriod = 0
GoToRx2
(100)
Set
CommandRegister = Idle
(000)
RxMultiple = 0 &&
TimeSlotPeriod > 0 &&
TimeSlot Trigger &&
Data in FIFO
Remark: I•CODE1 do not have a SOF and a EOF
103
RxMultiple = 1 &&
TimeSlotPeriod > 0 &&
TimeSlot Trigger &&
Data in FIFO
Idle
(000)
Preparing to
send the Quit
value
Preliminary