FEP INITIALIZATION & BUILT-IN SELF TEST
3-2
2400-31 FEP Maintenance & Support Guide
Revision 1.0, March 2005
Table 3-2. CPCI-821 Initialization and Self Test LEDs
User LED Pattern
Initialization Stage Passed
ACT
External Bus Controller Initialized
ST0
Local Bus Priorities Set
ST1
Interrupt Controller Initialized
IOP
UART Initialized
ACT & ST0
Reset Status Check Done
ACT & ST1
I
2
C Bus Initialized
ACT & IOP
System Clocking Initialized
ST0 & ST1
System Strapping Valid
ST0 & IOP
I
2
C Bus Reinitialized
ST1 & IOP
SDRAM Initialized
ACT & ST0 & ST1
BSS Section Cleared
All LEDs OFF
Breeze or user application entry
