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8170 N/B MAINTENANCE
---Independent bus master logic for 5 channels (PCM In/Out, Mic Input, Modem In/Out)
---Separate independent PCI functions for Audio and Modem
---Support for up to six channels of PCM audio output (full AC3 decode)
---Supports wake-up events
Interrupt Controller
---Support up to 8 PCI interrupt pins
---Supports PCI 2.2 Message-Based Interrupts
---Two cascaded 82C59
---Integrated I/O APIC capability
---15 interrupts supported in 8259 mode, 24 supported in I/O APIC mode
---Supports Serial Interrupt Protocol
---Supports Front-Side Bus interrupt delivery
1.8 V operation with 3.3 V I/O
---5V tolerant buffers on IDE, PCI, USB Over current and Legacy signals
GPIO
---TTL, Open-Drain, Inversion
Timers Based on 82C54
---System timer, Refresh request, Speaker tone output
Power Management Logic
---ACPI 1.0 compliant
---ACPI Power Management Timer
---PCI PME# support
---SMI# generation
---All registers readable/restorable for proper resume from 0V suspend states
---Support for APM-based legacy power management for non-ACPI implementations