參數(shù)資料
型號: CLRC632
廠商: NXP Semiconductors N.V.
英文描述: Multiple Protocol Contactless Reader IC
中文描述: 多協(xié)議非接觸式讀卡器IC
文件頁數(shù): 52/163頁
文件大?。?/td> 948K
代理商: CLRC632
Philips Semiconductors
Product Specification Rev. 3.0; May 2003
Multiple Protocol Contactless Reader IC
CL RC632
52
Confidential
5.2.5.3
ChannelRedundancy Register
Selects kind and mode of checking the data integrity on the RF-channel.
Name: ChannelRedundancy
Address: 0x22
Reset value: 00000011, 0x03
7
6
5
4
3
2
1
0
0
0
CRC
3309
CRC8
RxCRCEn
TxCRCEn
ParityOdd
ParityEn
Access
Rights
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Description of the bits
Bit
Symbol
Function
7-6
00
This value shall not be changed
5
CRC3309
If set to 1, CRC-calculation is done according ISO/IEC3309 (ISO14443B) and ISO
15693.
Note: For usage according to ISO14443A this bit has to be 0.
For usage according to
I
CODE
1 this bit has to be 0.
4
CRC8
If set to 1, an 8-bit CRC is calculated.
If set to 0, a 16-bit CRC is calculated.
3
RxCRCEn
If set to 1, the last byte(s) of a received frame is/are interpreted as CRC byte/s.
If the CRC itself is correct the CRC byte(s) is/are not passed to the FIFO.
In case of an error, the
CRCErr
flag is set.
If set to 0, no CRC is expected.
2
TxCRCEn
If set to 1, a CRC is calculated over the transmitted data and the CRC byte(s) are
appended to the data stream.
If set to 0, no CRC is transmitted.
1
ParityOdd
If set to 1, an odd parity is generated or expected, respectively.
If set to 0 an even parity is generated or expected, respectively.
Note: For usage according to ISO14443-A this bit has to be 1.
0
ParityEn
If set to 1, a parity bit is inserted in the transmitted data stream after each byte
and expected in the received data stream after each byte (MIFARE
, ISO14443A)
If set to 0, no parity bit is inserted or expected (ISO14443B)
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