Elo TouchSystems B-Series Guia do Utilizador descarregar pdf (Página 87)

USB IntelliHead Swipe Reader

TRACK 1 DECODE STATUS

Bits 7-1 0

Value Reserved Error

This is a one-byte value, which indicates the status of decoding track 1. Bit position zero

indicates if there was an error decoding track 1 if the bit is set to one. If it is zero, then no error

occurred. If a track has data on it that is not noise, and it is not decodable, then a decode error is

indicated. If a decode error is indicated, the corresponding track data length value for the track

that has the error will be set to zero and no valid track data will be supplied.

TRACK 2 DECODE STATUS

Bits 7-1 0

Value Reserved Error

This is a one-byte value, which indicates the status of decoding track 2. Bit position zero

indicates if there was an error decoding track 2 if this bit is set to one. If it is zero, then no error

occurred. If a track has data on it that is not noise, and it is not decodable, then a decode error is

indicated. If a decode error is indicated, the corresponding track data length value for the track

that has the error will be set to zero and no valid track data will be supplied.

TRACK 3 DECODE STATUS

Bits 7-1 0

Value Reserved Error

This is a one-byte value, which indicates the status of decoding track 3. Bit position zero

indicates if there was an error decoding track 3 if this bit is set to one. If it is zero, then no error

occurred. If a track has data on it that is not noise, and it is not decodable, then a decode error is

indicated. If a decode error is indicated, the corresponding track data length value for the track

that has the error will be set to zero and no valid track data will be supplied.

TRACK 1 DATA LENGTH

This one-byte value indicates how many bytes of decoded card data are in the track 1 data field.

This value will be zero if there was no data on the track or if there was an error decoding the

track.

TRACK 2 DATA LENGTH

This one-byte value indicates how many bytes of decoded card data are in the track 2 data field.

This value will be zero if there was no data on the track or if there was an error decoding the

track.

TRACK 3 DATA LENGTH

This one-byte value indicates how many bytes of decoded card data are in the track 3 data field.

This value will be zero if there was no data on the track or if there was an error decoding the

track.

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Elo TouchSystems B-Series Guia do Utilizador Página 87