ECM-5716 SeriesECM-5716 Series User’s Manual 111POST CodesPOST (hex) DescriptionCFh Test CMOS R/W functionality.C0h Early chipset initialization:-Disable shadow RAM-Disable L2 cache (socket 7 or below)-Program basic chipset registersC1h Detect memory-Auto-detection of DRAM size, type and ECC.-Auto-detection of L2 cache (socket 7 or below)C3h Expand compressed BIOS code to DRAMC5h Call chipset hook to copy BIOS back to E000 & F000 shadowRAM.0h1 Expand the Xgroup codes locating in physical address1000:002h Reserved03h Initial Superio_Early_Init switch.04h Reserved05h 1. Blank out screen2. Clear CMOS error flag06h Reserved07h 1. Clear 8042 interface2. Initialize 8042 self-test08h 1. Test special keyboard controller for Winbond 977 seriesSuper I/O chips.2. Enable keyboard interface.09h Reserved0Ah 1. Disable PS/2 mouse interface (optional).2. Auto detect ports for keyboard & mouse followed by a port& interface swap (optional).3. Reset keyboard for Winbond 977 series Super I/O chips.0Bh Reserved0Ch Reserved0Dh Reserved0Eh Test F000h segment shadow to see whether it is R/W-able ornot. If test fails, keep beeping the speaker.0Fh Reserved10h Auto detect flash type to load appropriate flash R/W codesinto the run time area in F000 for ESCD & DMI support.11h Reserved12h Use walking 1’s algorithm to check out interface in CMOScircuitry. Also set real-time clock power status, and thencheck for override.13h Reserved14h Program chipset default values into chipset. Chipset defaultvalues are MODBINable by OEM customers.15h Reserved
