16 Functional Description3.2 ChipsetIntel® ICH8 Mobile I/O Controller HubThe ICH8M provides extensive I/O support. Functions and capa-bilities include:X Provides 6 PCI Expressx1 ports, supporting the PCIExpress Base Specification, Revision 1.1. Each Root Portsupports 2.5GB/s bandwidth in each direction. ThecPCI-3615 utilizes two PCI Express x1 ports for two GigabitEthernet controllers; routes two PCI Express x1 ports to theboard-to-board connector and one PCI Express x1 port tothe J2 connector for expansion capability.X Enhanced DMA controller, interrupt controller, and timer functionsX Integrated Serial ATA host controller with independent DMAoperation on three portsX Integrated IDE controller supports Ultra ATA100/66/33X System Management Bus (SMBus) Specification, Version2.0 with additional support for I2C devicesX Supports Intel® Matrix Storage TechnologyX PCI Local Bus Specification, Revision 2.3 support for33MHz PCI operations3.3 Super I/OThe ITE IT8783F Super I/O is on a Low Pin Count interface sup-porting PS/2 keyboard/mouse; three 16C550-compatible serialports; hardware monitor function to monitor CPU voltage, CPUtemperature, power supply voltages and system temperature; andWatchdog Timer with time resolution from minimum 1 second orminute to maximum 65635 seconds or minutes on the cPCI-3615.