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NLX PC CORE - MISCELLANEOUS INTERFACE BOARD Test Results LED Status 0H Pass 8H Data error while verifying 00H write 9H Data error while verifying 0FFH write at address 0000H or 8000H AH Lower SRAM address bus error in lower 8 lines BA0 - 7 BH Lower SRAM address bus error in upper 8 lines BA8 - 15 CH Upper SRAM address bus error in lower 8 lines BA0 - 7 DH Upper SRAM address bus error in upper 8 lines BA8 - 15 EH Chip select fault If the board is populated with only one SRAM then the error codes refer to the upper or lower half of tested memory. 18.9-21