Yamaha DRX-2 Service Manual page 33

Nucleus Name DS_DVIO_Routing
Nucleus Number 704
Description Route a DV stream containing an audio and video signal through the physical and link layer
ICs to the Chrysalis
Technical - Initialise the DMA to transfer 5 frames PAL/NTSC
- Initialise the DV demultiplexer
- Initialise the 1394 interface and start reception of the DV stream
- Check whether the stream was copied to memory properly by the byte input interface (port
to memory type DMA)
Execution Time 6-10 seconds (6 when OK, 10 when no stream or error)
User Input None, test works for both NTSC and PAL
Error Number
70400
70401
70402
70403
70404
Example DS:> 704
070400:
Test OK @
Nucleus Name DS_DVIO_DetectNode
Nucleus Number 705
Description Check whether a DV node can be detected by the hardware
Technical - Initialise the 1394 interface
- Detect whether a node is in range
Execution Time 3 or 5 seconds (3 when OK, 5 when no stream or error)
User Input None, test works for both NTSC and PAL
Error Number
70500
70501
70502
70503
70504
Example DS:> 705
070500:
Test OK @
Nucleus Name DS_DVIO_DetectStream
Nucleus Number 706
Description Check whether a DV stream can be detected by the hardware
Technical - Initialise the 1394 interface
- Start receiving the stream
- Detect whether the stream is OK
Execution Time 3 or 5 seconds (3 when OK, 5 when no stream or error)
User Input None, test works for both NTSC and PAL
Error Number
70600
70601
70602
Example DS:> 706
070600:
Test OK @
Description
Routing the signals succeeded
The 1394 link chip could not be initialised properly
There was a syntax error in the DV stream
DMA could not copy DV stream to memory. Stream connect-ed?
DMA not working properly
Description
The node was detected OK
The 1394 link chip could not be initialised properly
Unable to write to 1394 PHY chip
Unable to read from 1394 PHY chip
No node was detected
Description
The stream was detected
The 1394 link chip could not be initialised properly
No stream detected
DRX-2
33