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): 32/163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
32
Confidential
5.2.2.3
ErrorFlag Register
Error flags showing the error status of the last executed command.
Name: ErrorFlag
Address: 0x0A
Reset value: 01000000, 0x40
7
6
5
4
3
2
1
0
0
KeyErr
AccessErr
FIFOOvfl
CRCErr
FramingErr
ParityErr
CollErr
Access
Rights
r
r
r
r
r
r
r
r
Description of the bits
Bit
Symbol
Function
7
0
Reserved for future use.
6
KeyErr
This bit is set to 1, if the LoadKeyE2 or the LoadKey Command recognises, that
the input data is not coded according to the Key format definition.
This bit is set to 0 starting the LoadkeyE2 or the LoadKey command.
5
AccessErr
This bit is set to 1, if the access rights to the E2PROM are violated.
This bit is set to 0 starting an E2PROM related command.
4
FIFOOvfl
This bit is set to 1, if the μ-Processor or a CL RC632’s internal state machine (e.g.
receiver) tries to write data into the FIFO buffer although the FIFO buffer is
already full.
3
CRCErr
This bit is set to 1, if
RxCRCEn
is set and the CRC fails. It is cleared to 0
automatically at receiver start phase during the state PrepareRx.
2
FramingErr
This bit is set to 1, if the SOF is incorrect. It is cleared automatically at receiver
start (that is during the state PrepareRx).
1
ParityErr
This bit is set to 1, if the parity check has failed. It is cleared automatically at
receiver start (that is during the state PrepareRx).
0
CollErr
This bit is set to 1, if a bit-collision is detected. It is cleared automatically at
receiver start (that is during the state PrepareRx).
Note: only valid for communication according to ISO14443 A.
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