Cobalt Digital Inc 9903-UDX-ADDA Product Manual page 79

Operating Instructions
Table 3-2 9903-UDX-ADDA Function Menu List — continued
Notes: • Packets received must be sized to fit in a native ancillary data packet (i.e., payloads that span multiple ancillary packets need to be broken down by the
sending controller before they are sent to the device).
• Device can be configured to send back ACK packets each time data is inserted. The ACK packet is sent immediately after the data is actually inserted.
Packets need to be broken down by the sending controller before they are sent to the device. Device can also be configured to send out "heartbeat"
packets every two seconds as an additional safeguard.
• Packet formatting for insertion/extraction, ACK, and heartbeat is as follows:
Packet formatting used for insertion/extraction:
Bytes
3:0 Packet Type (0xF5AB02ED)
5:4
6
7
Line number for Insertion. If set to 0, use the
9:8
line number set by software.
11:10
15:12
N:16
9903UDXADDA-OM (V1.5)
Field Bytes
3:0
Packet size 5:4
DID 6
SDID 7
9:8
Payload size 11:10
User packet ID 15:12
Payload 31:16
9903-UDX-ADDA PRODUCT MANUAL
9903-UDX-ADDA Function Menu List and Descriptions
(continued)
ACK Packet Format
Field
Packet Type (0xAC73B938)
Received packet size
Received DID
Received SDID
Line number on which the received
packet was inserted
Received payload size
Received user packet ID
Reserved
Heartbeat Packets
Bytes Field
3:0 Packet Type (0x20120831)
31:4 Reserved
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