CLRC63201TSLASH0FE datasheet(90/163 Pages) PHILIPS

90 / 163 page

Philips Semiconductors

Product Specification Rev. 3.0; May 2003

Multiple Protocol Contactless Reader IC

CL RC632

Confidential

Example:

CoderRate = 0x05 (~52.97kHz)

For I

•CODE1 standard mode the interval should be 8.458ms

->TimeSlotPeriod = CoderRate * interval = 52.97kHz * 8.458ms –1 = 447 (447 = 0x1BF)

Note: The MSB of the TimeSlotPeriod is in the MFOUTSelect register.

Command

Quit1

Quit2

Response1

Response2

TSP1

TSP2

Command

Quit1

Quit2

Response1

Response2

TSP1

TSP2

TimeSlotPeriod for TSP1

TimeSlotPeriod for TSP2

•CODE1 Standard Mode

0xBF

0x1BF

•CODE1 Fast Mode

0x5F

0x67

Note: It is strictly recommended that bit TxCRCEn is set to 0 before the Quit-Frame is sent. If the TxCRCEn

is not set to 0 a CRC value is calculated and sent with the Quit-Frame.

To calculate the Quit value a CRC8 algorithm has to be used.

9.3

Usage of the Timer Unit

9.3.1

TIME-OUT- AND WATCH-DOG-COUNTER

Having started the timer by setting TReloadValue the timer unit decrements the TimerValue Register

beginning with a certain start event. If a certain stop event occurs e.g. a bit is received from the card, the

timer unit stops (no interrupt is generated).

On the other hand, if no stop event occurs, e.g. the card does not answer in the expected time, the timer unit

decrements down to zero and generates a timer interrupt request. This signals the µ-Processor that the

expected event has not occurred in the given time TTimer.

CLRC63201T/0FE 데이터시트(PDF) 90 Page - NXP Semiconductors

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