SLRC400 Datasheet, PDF (4/130 Pages) NXP Semiconductors – I·CODE Reader IC

Philips Semiconductors
I•CODE Reader IC
Product Specification Rev. 2.0 November 2001
SL RC400
11.1
11.2
11.3
11.4
Hard Power Down Phase........................................................................................................... 81
Reset Phase.............................................................................................................................. 81
Initialising Phase........................................................................................................................ 81
Initialising the Parallel Interface-Type.......................................................................................... 82
12
OSCILLATOR CIRCUITRY........................................................................................................ 83
13
TRANSMITTER PINS TX1 AND TX2.......................................................................................... 84
13.1 Configuration of TX1 and TX2..................................................................................................... 84
13.2 Operating Distance versus Power Consumption .......................................................................... 84
13.2.1 Antenna Driver Output Source Resistance................................................................................... 85
13.3 Changing the Modulation Index .................................................................................................. 87
13.4 Pulse Width............................................................................................................................... 88
14
RECEIVER CIRCUITRY ............................................................................................................ 89
14.1 General..................................................................................................................................... 89
14.2 Block Diagram........................................................................................................................... 89
14.3 Putting the Receiver into Operation............................................................................................. 90
14.3.1 Automatic Clock-Q Calibration.................................................................................................... 90
14.3.2 Amplifier.................................................................................................................................... 91
14.3.3 Correlation Circuitry ................................................................................................................... 92
14.3.4 Evaluation and Digitizer Circuitry ................................................................................................ 92
15
15.1
15.2
15.3
SERIAL SIGNAL SWITCH......................................................................................................... 93
General..................................................................................................................................... 93
Block Diagram........................................................................................................................... 93
Registers Relevant for the Serial Signal Switch............................................................................ 94
16
SL RC400 COMMAND SET ....................................................................................................... 95
16.1 General Description................................................................................................................... 95
16.2 General Behaviour..................................................................................................................... 95
16.3 SL RC400 Commands Overview ................................................................................................ 96
16.3.1 Basic States.............................................................................................................................. 97
16.3.2 StartUp Command 3F_hex ............................................................................................................ 97
16.3.3 Idle Command 00_hex................................................................................................................... 97
16.4 Commands for Label Communication.......................................................................................... 98
16.4.1
16.4.2
16.4.3
16.4.4
Transmit Command 1A_hex........................................................................................................... 98
Receive Command 16_hex .......................................................................................................... 100
Transceive Command 1E_hex ..................................................................................................... 102
States of the Label Communication........................................................................................... 102
16.4.5 State Diagram for the Label Communication.............................................................................. 103
16.5 Commands to Access the E²PROM .......................................................................................... 104
16.5.1 WriteE2 Command 01_hex .......................................................................................................... 104
4
Preliminary