CLRC663 Datasheet, PDF (111/132 Pages) NXP Semiconductors – Contactless reader IC

NXP Semiconductors
CLRC663
Contactless reader IC
Table 226. RxBitMod bits
Bit
Symbol
7 to 6 RFU
5
RxStopOnInvPar
4
RxStopOnLength
3
RxMSBFirst
2
RxStopBitEn
1
RxParityType
0
RFU
9.17.2 RxEofSym
Table 227. RxEofSym (address 59h)
Bit
7
6
5
Symbol
Access
rights
Description
-
If set to 1, inverse parity bit is a stop condition
If set to 1, data reception stops when the number of received
bytes reach the defined frame length. The value for the frame
length is taken from the first data-byte received.
If set to 1, data bytes are interpreted MSB first for data
reception, which means data is converted at the CLCoPro
interface. If this bit is set to 0, data is interpreted LSB first
If set, a stop-bit is expected and will be checked and
extracted from data stream. Additionally on detection of a
stop-bit a reset signal for the demodulator is generator to
enable a re-synchronization of the demodulator. If the
expected stop-bit is incorrect, a frame error flag is set and the
reception is aborted.
Note: A stop bit is always considered to be a logic 1
Defines which type of the parity-bit is calculated.
If cleared: Even parity
If set: Odd parity
-
4
3
RxEOFSymbol
r/w
2
1
0
Table 228. RxEOFSym bits
Bit
Symbol
Description
7 to 0
RxEOF
Symbol
This value defines the pattern of the EOF symbol with a maximum
length of 4 bit. Every tuple of 2 bits of the RxEOFSymbol encodes one
bit of the EOF symbol. A 00 tuple closes the symbol. In this way
symbols with less than 4 bits can be defined, starting with the bit0 and
bit1. The leftmost active symbol pattern is processed first, which
means the pattern is expected first. If the bit0 and bit1 are both zero,
the EOF symbol is disabled. The following mapping is defined:
0h - no symbol bit
1h - zero value
2h - one value
3h - collision
Example:
1Dh: Zero-Collision-Zero
E8h: No symbol because two LSBits are zero
CLRC663
Product data sheet
COMPANY PUBLIC
All information provided in this document is subject to legal disclaimers.
Rev. 3.3 — 3 April 2012
171133
© NXP B.V. 2012. All rights reserved.
111 of 132