|
|
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
Do a quick order, scan quality is high.
I recommend to all!
;
This manual is perfect! Just what I needed. Thanks!
;
This manual was very clear and complete, the prices can't be beat, great to have older manuals available!
 ;
Doubted for buy this manual as it is my first order here and at not have cover image, I assumed would haven't. However, within 24 hs, already possessed the link to download it. The manual are scanned correctly and have all what is needed. Includes adjustments and diagrams of all circuits. Very satisfied.
;
Really good quality, аll readable.! Wonderful work shop. I recommend to all!
SDP-5 Serial Communications Protocol
Printed on: 04/01/03
5 Data Link Layer
The data link layer is used to define a transmission packet. The layer appends a header and tail that encloses the transmitted application packet data. The data link header will contain the start of packet byte and count of bytes to follow. The data link tail will contain the end of packet byte. Data Link Header: Byte Number Description First Byte(0) Start of Packet (SOP) Byte(1) DLL Data Count Application Header: Byte(2) Command APP Data Count (number of application data bytes to Byte(3) Follow) Application Data: Byte(4) Byte(5) � Last Data Byte -1 Data Link Tail: Last Byte Value 0xF1 nn
nn nn
Data[0] Data[1] Data[�] Data[Data Count -1]
nn nn nn nn
End of Packet (EOP)
0xF2
5.1 Errors
If the number of DLL data bytes received is the same as the data count and an EOP has not been received, the SDP-5 responds by transmitting a NAK packet with an error code DC_ERR_INVALID_PACKET. The SDP-5 then continues to look for a SOP byte and will not process the erroneous application packet. The HOST can use this as an indicator to retransmit the corrupted packet. In addition, each byte of a packet must be received sequentially and within the INTER_PACKET_TIME. If any of the bytes within a packet transmission exceeds the INTER_PACKET_TIME, the SDP-5 will respond by transmitting a NAK packet with an error code DC_ERR_INVALID_PACKET. The SDP-5 then continues to look for a SOP byte and will not process the erroneous application packet. The HOST can use this as an indicator to retransmit the corrupted packet.
6 Application Layer 6.1 SDP-5 Asynchronous Notification Packets
SDP-5 has been designed to transmit the asynchronous notification packets following these system changes: 1. Power On 2. Entering Standby 3. Front Panel Display update 4. Parameter Value Changes.
© 2003 JBL, Inc. All rights reserved.
8 of 80
 $4.99 SDP-5 JBL
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
|
|
|
> |
|
