Intel E6320 Specification Update - Page 16

Identification Information Component Identification using Programming Interface The processor stepping can be identified by the following register contents. Reserved 31:28 EFxatm enidlye1d 27:20 00000000b EMxtoednedle2d 19:16 0010b Reserved 15:14 PrToycpeses3or 13:12 00b FCaomdeil4y 11:8 0110 NuMmodbeelr5 7:4 1010b SteIpDp6ing 3:0 xxxxb Notes: 1. The Extended Family, bits [27:20] are used in conjunction with the Family Code, specified in bits [11:8], to indicate whether the processor belongs to the Intel386, Intel486, Pentium, Pentium Pro, Pentium 4, or Intel® Core™ processor family. 2. The Extended Model, bits [19:16] in conjunction with the Model Number, specified in bits [7:4], are used to identify the model of the processor within the processor's family. 3. The Processor Type, specified in bits [13:12] indicates whether the processor is an original OEM processor, an OverDrive processor, or a dual processor (capable of being used in a dual processor system). 4. The Family Code corresponds to bits [11:8] of the EDX register after RESET, bits [11:8] of the EAX register after the CPUID instruction is executed with a 1 in the EAX register, and the generation field of the Device ID register accessible through Boundary Scan. 5. The Model Number corresponds to bits [7:4] of the EDX register after RESET, bits [7:4] of the EAX register after the CPUID instruction is executed with a 1 in the EAX register, and the model field of the Device ID register accessible through Boundary Scan. 6. The Stepping ID in bits [3:0] indicates the revision number of that model. See Table 1 for the processor stepping ID number in the CPUID information. When EAX is initialized to a value of '1', the CPUID instruction returns the Extended Family, Extended Model, Processor Type, Family Code, Model Number and Stepping ID value in the EAX register. Note that the EDX processor signature value after reset is equivalent to the processor signature output value in the EAX register. Cache and TLB descriptor parameters are provided in the EAX, EBX, ECX and EDX registers after the CPUID instruction is executed with a 2 in the EAX register. The processor can be identified by the following register contents. Stepping Vendor ID1 Host Device ID2 Processor Graphics Device ID3 Revision ID4 GT1: 0102h D-2 8086h 0100h GT2: 0112h 09h GT2 (>1.3 GHz Turbo): 122h GT1: 0102h Q-0 8086h 0100h GT2: 0112h 09h GT2 (>1.3 GHz Turbo): 122h Notes: 1. The Vendor ID corresponds to bits 15:0 of the Vendor ID Register located at offset 00-01h in the PCI function 0 configuration space. 2. The Host Device ID corresponds to bits 15:0 of the Device ID Register located at Device 0 offset 02-03h in the PCI function 0 configuration space. 3. The Processor Graphics Device ID (DID2) corresponds to bits 15:0 of the Device ID Register located at Device 2 offset 02-03h in the PCI function 0 configuration space. 4. The Revision Number corresponds to bits 7:0 of the Revision ID Register located at offset 08h in the PCI function 0 configuration space. 16 Specification Update