Data File Message - Magtek DynaFlex II Go Programmer's Manual

3 - Messages (Requests, Responses, Notifications, and Files)
Tag Len
These four bytes, when combined with Notification Source
and Notification Type, form a six byte unique ID for the
notification. Each six byte combination has a specific meaning
and represents a different call to action for the host. See
section 7 Notifications for Notification Detail Codes tables
containing information about the notification.
Additional Detail
83 var See the notification definition in section 7 Notifications for
notification-specific Additional Details.
Notification Payload
84 var As documented in the message's Notification table in section 7
Notifications.
9E var Reserved

3.2.2.4 Data File Message

This message type is used exclusively for transferring larger blocks of data that can overwhelm the
standard message queue. The payload data for each message is always be treated as an individual file.
This message is only valid after a successful invocation of Command 0xD811 - Start Send File to
Device (Secured), Command 0xD812 - Start Send File to Device (Unsecured), or Command 0xD821
- Start Get File from Device.
Table 3.2-6 - Data File Message Format
Tag Len
One byte standard Start of Message constant, not in TLV format.
•
0xAA = Standard start of message byte
One byte standard API Framework Version constant, not in TLV format, used for tracking version
compatibility. Devices that implement higher (newer) versions of the API framework are designed to be
reasonably compatible with current and previous (lower) versions:
•
0x00 = Pre-production development (limited breaking changes). At minimum, every device
MagTek ever produces using the MMS framework will accept this value.
•
0x01 = First Production release (no breaking changes)
•
0x02 = Second Production release
•
Etc.
81 08 Message Information
Message Type & Direction
•
/null (1) 0x04 = Data file from host to device
•
0x84 = Data file from device to host
/null (1) Message Reference Number
DynaFlex II Go| Secure Card Reader | Programmer's Manual (COMMANDS)
Value / Description
Value / Description
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Typ Req Default
O
B O
B O
Typ Req Default
B R
B R
B R