Intel 80312 I/O Companion Chip - ECEE

Intel ® 80312 I/O Companion ChipPeripheral Memory-Mapped RegistersTable A-2. Peripheral Memory-Mapped Register Locations (Sheet 7 of 8)Intel ® 80312I/O CompanionChipPeripheralRegister Description (Name)RegisterSize inBitsInternal BusAddressPCIConfigurationSpace RegisterNumberInternalArbitration UnitCore InterfaceUnitI 2 CBusInterface UnitPCI AndPeripheralInterruptControllerGPIO RegistersInternal Arbitration Control Register 32 0000 1600H Must TranslateMaster Latency Timer Register 32 0000 1604H PCI address tothe Intel ® 80312Multi-Transaction Timer Register 32 0000 1608H I/O companion0000 160CH chipReservedx through Memory-Mapped0000 163FH AddressReservedx0000 1640Hthrough0000 1643HCIU Interrupt Status Register 32 0000 1644HReservedx0000 1648Hthrough0000 167FHI 2 C Control Register 32 0000 1680HI 2 C Status Register 32 0000 1684HI 2 C Slave Address Register 32 0000 1688HI 2 C Data Buffer Register 32 0000 168CHI 2 C Clock Control Register 32 0000 1690HI 2 C Bus Monitor Register 32 0000 1694HReservedx0000 1698Hthrough0000 16FFHIRQ Interrupt Status Register 32 0000 1700HFIQ2 Interrupt Status Register 32 0000 1704HFIQ1 Interrupt Status Register 32 0000 1708HProcessor Device ID Register 32 0000 1710HReservedx0000 1714Hthrough0000 171BHMust TranslatePCI address tothe Intel ® 80312I/O CompanionChipMemory-MappedAddressMust TranslatePCI address tothe Intel ® 80312I/O CompanionChipMemory-MappedAddressMust TranslatePCI address tothe Intel ® 80312I/O CompanionChipMemory-MappedAddressGPIO Output Enable Register 32 0000 171CH Must TranslateGPIO Input Data Register 32 0000 1720H PCI address tothe Intel ® 80312GPIO Output Data Register 32 0000 1724H I/O Companion0000 1728H ChipReservedx through Memory-Mapped0000 17FFH AddressDeveloper’s Manual A-11