Chapter 12. DiagnosticsGFK-2224Q January 2017 211On the RX7i interfaces, the Ethernet LEDs are labeled EOK, LAN, and STAT.On the RX3i rack-based Ethernet interfaces, the Ethernet LEDs are labeled ETHERNET OK, LAN OK, and LOGEMPTY, respectively.12.4 EOK LED Blink Codes for Hardware Failures (Rack-based andRX7i Embedded Interfaces)The EOK LED indicates whether the module is able to perform normal operation. This LED is on for normaloperation and flashing for all other operations. If a hardware or unrecoverable runtime failure occurs, the EOKLED blinks a two-digit error code. The EOK LED first blinks to indicate the most significant error digit, then aftera brief pause blinks again to indicate the least significant error digit. After a long pause the error code displayrepeatsBlinkCode Description Blink Code Description0x12 Undefined or Unexpected Interrupt. 0x42 Firmware Loader error0x13 Timer failure during power up diagnostics. 0x51 Unexpected watchdog timer exception0x14 DMA failure during power up diagnostics. 0x52 Unexpected debug exception0x21 RAM failure during power up diagnostics. 0x61 Boot: Critical interrupt exception0x22 Stack error during power up diagnostics. 0x62 Boot: Machine check exception0x23 Shared Memory Interface error duringpower up diagnostics. 0x63 Boot: Data store exception0x24 Firmware CRC (cyclic redundancy check)error during power up or Factory Test22 0x64 Boot: Instruction store exception0x25 Run time exception 0x65 Boot: External interrupt exception0x26 No mail communication available duringsoftware load 0x66 Boot: Alignment exception0x27 Serial EEPROM access exception 0x67 Boot: Program exception0x28 Serial EEPROM reset exception 0x68 Boot: System call exception0x31 Machine check exception 0x69 Boot: PIT interrupt exception0x32 Data store exception. 0x71 Boot: FIT interrupt exception0x33 Instruction store exception 0x72 Boot: WDT interrupt exception0x34 Alignment exception 0x73 Boot: Data cache TLB miss exception0x35 Program exception 0x74 Boot: Instruction cache TLB missexception0x36 System call exception 0x75 Boot: Debug exception0x37 Unexpected IRQ exception 0x76 Boot: Flash memory CRC error0x38 Data cache TLB miss exception 0x77 Boot: Unexpected ACFAIL interrupt22 CRC error or software error during normal operation causes Ethernet restart
