Technical Manual
Issue 2.1
4000 Digital Series
II
Page 94
STA0381
Code Checksum Test
Appears for 0.5 seconds
Workspace RAM Test
Appears for 1 second
Dual Port RAM Test
Appears for 0.25 seconds
Initialisation Test
Appears for 0.25 seconds
Normal Operation
Flashes at 2Hz to indicate processor is running
Message Received
PDE4628 has received a message on a communica-
tion channel and is waiting for the Host CPU to read it
out
Current Mode of Operation
Indicates the current mode of operation - as shown
below
Table 12: PDE 4628 Self Tests
Action
LED Display
Indication
LED 4
LED 5
Mode of Operation
OFF
OFF
Power on self tests
OFF
ON
Waiting for initialisation
ON
OFF
Operational mode
ON
ON
Test mode
Содержание 4000 series II
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