|[News] Pictures of the MicroA1 "Industrial" motherboard||ANN.lu|
|Posted on 17-Oct-2004 12:25 GMT by Not ArticiaP||69 comments|
On this link you will see three pictures of the MicroA1 "Industrial" motherboard: http://lain.ziaspace.com/~ryu/a1. On the pictures you can see that it still uses the ArticiaS northbridge, as well as the VIA 686B southbridge, but a standalone Sil0680 IDE controller is there as well.
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|Pictures of the MicroA1 "Industrial" motherboard : Comment 34 of 69||ANN.lu|
|Posted by priest on 19-Oct-2004 04:09 GMT|
|In reply to Comment 33 (Anonymous):|
"What was the main idea of including this PLD chip?"
To allow 6 bus masters. (if you could read, you would have figured it out)
"A) To solve problems with ArticiaS and VT82C686B communication? (VIA ATA-100 controller problems in UDMA mode)"
No. Because I model does not use 686B for IDE.
"If this PLD fixes this problem why additional ATA controller (Sil 0680) has been added on the uA1-I board?"
It is not said to fix anything. 0680 gives UDMA133 (not sure if it somehow also enables compact flash...).
"If this PLD does not solve this problem why Sil 0680 are not present on the uA1-C board?"
If the PLD is to enable 6 bus masters, perhaps 6 bus masters are not needed without PC104.
"Isn't it because C version was designed earlier, when VIA ATA-100 controller problem wasn't known?"
More likely it's because C version is more of a MAI desing rather than Ayetech design.
"B) Only for adding 6 (instead of 5 supported by Articia S) bus masters devices to BUS-0?
If yes, why support for only 6 bus master has been added? Why not 7?"
Only one more was needed?
"Support for 6 devices only means that one PCI device (RTL8110 NIC controller) had to be placed on BUS-1."
Via, Nic, 3*PCI/4*PC104, Sil0680. hmmm... it seems like that.... unless the 4*PC104 limits the use of something else...
"It means that BUS-1 have to be configured as 66MHz PCI without the AGP features. This downgrades Radeon 7000 capabilities from AGP x2 to AGP x0 (= PCI). Why they did it? Because Articia S do not support AGP x2 features in spite of MAI claims?"
Perhaps they did not do that? (there's something we do not know)
Perhaps Radeon7000 does not gain anything from AGP2x ?
btw. what's "PLD" in the first place ? ProgrammableLatchDevice ??? ;)
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