Int 15/AX=53B0h/BH=02h

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Intel System Management Bus - REAL MODE CONNECT

AX = 53B0h
BH = 02h
CX = 6941h ('iA')

Return:
CF clear if successful AX = SMBus Real mode code segment BX = offset of entry point into SMBus BIOS Interface CX = SMBus Real mode data segment CF set if error AH = error code (01h,02h,0Ah,86h) (see #00484) AL = sub-error code if error code is 02h (see #00485)

Desc: Connect to SMBus interface; once connected, all SMBus calls are made to the supplied entry point instead of INT 15 (with registers identical to those described here for INT 15)

Notes: Support for this function is optional. This function is only supported in INT 15 mode when implemented

See Also: AX=53B0h/BH=01h - AX=53B0h/BH=03h - AX=53B0h/BH=04h

Category: Expansion Bus Bios - Int 15h - I

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