CLRC663 datasheet(72/132 Pages) NXP

72 / 132 page

CLRC663

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Product data sheet

COMPANY PUBLIC

Rev. 3.3 — 3 April 2012

171133

72 of 132

NXP Semiconductors

CLRC663

Contactless reader IC

6 to 4

RxAlign

Used for reception of bit oriented frames: RxAlign defines the bit position

length for the first bit received to be stored. Further received bits are

stored at the following bit positions.

Example:

RxAlign = 0h - the LSB of the received bit is stored at bit 0, the second

received bit is stored at bit position 1.

RxAlign = 1h - the LSB of the received bit is stored at bit 1, the second

received bit is stored at bit position 2.

RxAlign = 7h - the LSB of the received bit is stored at bit 7, the second

received bit is stored in the following byte at position 0.

Note: If RxAlign = 0, data is received byte-oriented, otherwise

bit-oriented.

NoColl

If this bit is set, a collision will result in an IntegErr

2 to 0

RxLastBits

Defines the number of valid bits of the last data byte received in

bit-oriented communications. If zero the whole byte is valid.

Note: These bits are set by the RxDecoder in a bit-oriented

communication at the end of the communication. They are reset at start

of reception.

Table 72.

RxBitCtrl bits

Bit

Symbol

Description

CLRC663 Datasheet(PDF) 72 Page - NXP Semiconductors