Bitfields for OPTi 82C750 Vendetta (device 1) interrupt multiplexing control: Bit(s) Description ) 15 pin functionality 0 = AE22:IRQ3, AF21:IRQ5, AE21:IRQ6, AD21:IRQ7, AE20:IRQ9, AF19:IRQ11 1 = AE22:MIRQ3/5, AF21:MIRQ7/9, AE21:MIRQ11/15, AD21:EPMI1#, AE20:EPMI2#, AF19:GMIRQ 14 pin R22 functionality (0 = PREQ2#, 1 = EPMI0#) 13 IRQ1 latching enable 12 IRQ12 latching enable 11 DACKEN# status (0 = active low, 1 = active high) 10 system bus owned by external device 9 flash ROM locking enable 8 reserved 7 IRQ6 triggering (0 = edge, 1 = level) 6-3 IRQ generation when GMIRQ triggered 0000 = disabled 0001-0010 = reserved 0011-0111 = IRQ3-IRQ7 1000 = reserved 1001-1100 = IRQ9-IRQ12 1101 = reserved 1110-1111 = IRQ14-IRQ15 2 reserved (1) 1 priority scheme enable 0 concurrent refresh and IDE cycle enable SeeAlso: #00939,#00949