On Thu, 02 Aug 2007 07:16:51 +1000, Franc Zabkar
<fzabkar.TakeThisOut@iinternode.on.net> put finger to keyboard and composed:
>On Wed, 01 Aug 2007 19:40:22 +1000, Franc Zabkar
><fzabkar.TakeThisOut@iinternode.on.net> put finger to keyboard and composed:
>
>>Are the PCI subdevice and subvendor IDs for various chipset components
>>programmed into the chipset, or are they programmed into an external
>>EEPROM?
>>
>>For example, I have an ECS motherboard with an SiS 746/963 chipset.
>>The USB 1.1 (SiS 7001) and 2.0 (SiS 7002) controllers in the
>>southbridge are enumerated as 1039/7001 and 1039/7002, where 1039 is
>>Silicon Integrated Systems.
>>
>>The subvendor ID is 1019 (Elitegroup Computer Systems) and the
>>subdevice ID is 1808 which I presume refers to the motherboard
>>(L7S7A2).
>>
>>I have inspected the area around the southbridge but all I can find
>>are two unpopulated IC locations.
>
>On closer inspection one appears to be set aside for a resistor array,
>the other for an 8-pin serial EEPROM (the circuit reference is EEP1).
I managed to find a datasheet for an earlier SiS chipset (SiS
5597/5598) which uses an SiS 7001 USB 1.1 OHCI controller. Registers
2C-2F are set aside for the PCI subdevice and subvendor IDs. They are
described as "write once".
- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.
>> Stay informed about: PCI subdevice and subvendor IDs 
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