4.0 S-LINK Usage Instructions
Note that when a data error is detected the data error LED is illuminated and held. To clear this state a momentary switch shall be provided.
All LEDs shall be visible from the front panel of the FEMB or ROMB.
LED function | LED colour | Meaning when illuminated |
Power indicator | Green | LSC is powered up |
Test mode | Red | LSC is in test mode |
Not LDOWN# | Green | LDOWN# is not low: there is no known problem with the S-LINK |
LFF# active | Red | LFF# is active: no data can be transferred to the LSC |
LED function | LED colour | Meaning when illuminated |
Power Indicator | Green | LDC is powered up |
Test Mode | Red | LDC is in test mode |
Data Error | Red | Data error has been detected |
Not LDOWN# | Green | LDOWN# is not low: there is no known problem with the S-LINK |
XOFF# active | Red | XOFF# is active: the ROMB has set XOFF# low thus signalling that it wants the transfer of data from the LDC to stop |