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NEO 2 Interface Developer’s Guide
Copyright © 2019, International Technologies & Systems Corporation. All rights reserved.
287
PCD Command Flags Table
Bit#
Flag
Value
Meaning
0
Disable DF
(DF=Disturbance
Filter)
1
When response from PICC Card has been received, end of
response is signaled regardless of errors.
0
When response from PICC Card has been received, if there are
errors then the data received is flushed and we continue to
receive.
If there are no errors then end of response is signaled.
1
Flush FIFO
1
PCD FIFO is flushed before starting this PCD command.
0
PCD FIFO is not flushed before starting this command.
2-4
TxLastBits
000
~111
Used for transmission of bit oriented frames: TxLastBits defines
the number of bits of the last byte that shall be transmitted.
A 000 indicates that all bits of the last byte shall be
transmitted.
After transmission, TxLastBits is cleared automatically.
5
DISABLE
RXMULTIPLE
FILTER
1
Disable
0
Enable(Default)
6-7
RFU
00
Reserved for future use.
Note:
The definition of bit 5 is only to keep compatible with Kiosk II, it doesn't work, but this bit
is occupied, and is not allowed for other usage.
PCD Channel Redundancy Register Protocol 2
Bit#
Flag
Value
Meaning
0
Parity Enable
1
Parity bit inserted in transmitted data and expected in received data.
0
No parity bit inserted or expected.
1
Parity Odd
1
Odd parity.
0
Even parity.
2
Tx CRC Enable
1
CRC Bytes appended to transmitted data.
0
CRC Bytes not appended to transmitted data.
3
Rx CRC Enable
1
Last bytes of received data are interpreted as CRC bytes.
Note
: The CRC is not sent back to the terminal by ViVOpay.
0
No CRC expected.
4
CRC-8
1
8-Bit CRC calculated.
0
16-Bit CRC calculated.
5
CRC 3309
1
CRC-Calculation is done according to ISO /IEC3309 (ISO 14443B).
0
CRC-Calculation is done according to ISO 14443A.
6
RFU
0
Must always be zero.
7
RFU
0
Must always be zero.