128
Appendix
NC: Not Connected
ND: Not Defined
NFC Tag
31 Host Init Init Init
32 Printer Fault DataAvail/Data0,4 DataAvail
33 GND ND ND
34 Printer DK_STATUS ND ND
35 Printer +5V ND ND
36 Host SelectIn
1284-Active 1284-Active
CAUTION
• A signal name with a rule above it indicates an “L” active signal.
• Bidirectional communications cannot take place, unless all signal names for both sides
correspond to each other.
• Connect all signal lines using a twisted-pair cable. Connect the return side to the signal ground
level.
• Make sure the signals satisfy electrical characteristics.
• Set the leading edge and trailing edge times to 0.5ms or less.
• Do not ignore Ack
or BUSY signals during a data transfer. Ignoring such signals may result in
data corruption.
• Make the interface cables as short as possible.
Transmission standard ISO14443 A
Frequency 13.56 MHz
Memory 144 byte
Transmission distance Approximately 10 mm from the NFC installation location.
• The transmission distance is an estimate that depends on our experiment conditions and is not a
guaranteed value.
• It varies based on the installation environment and target device.
Pin Source Compatibility Mode Nibble Mode Byte Mode
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