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Functional Description
How to Read the 8-Bit POST Code
Due to the fact that only 4 bits are available and 8 bits must be displayed, the POST code output
is multiplexed on the Debug LEDs.
Table 2-5:
POST Code Sequence
STATE
0
All LEDs are OFF; start of sequence
1
High nibble
2
Low nibble
The following is an example of the Debug LEDs' operation if the POST configuration is enabled
(see also Table 2-4, "Debug LEDs Function").
Table 2-6:
POST Code Example
DLED3
HIGH NIBBLE
LOW NIBBLE
POST CODE
Note ...
Under normal operating conditions, the Debug LEDs should not remain lit red
during boot-up. They are intended to be used for debugging purposes. In the
event that a Debug LED lights up red during boot-up or the CP6003-RA/RC does
not boot, please contact Kontron for further assistance.
Page 2 - 10
DEBUG LEDs
DLED2
off (0)
on (1)
off (0)
off (0)
DLED1
DLED0
off (0)
off (0)
off (0)
on (1)
CP6003-RA/RC
RESULT
0x4
0x1
0x41
ID 1046-3890, Rev. 1.0
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