01-16-2003, 01:10 AM
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Contributing Editor Emeritus
Join Date: Aug 2006
Posts: 8,228
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Got X-Scale? Got SD? You have SDIO!
One of my MVP buds, Jared Miniman, also of pocketnow fame, was at CES last week. He had this bit of info to share:
"Throughout CES, I had my MVP hat on. When I had the chance to speak with a marketing guy who had a great deal of engineering expertise (gasp!!), I jumped at the opportunity to get my questions out. I spoke with a rep from SyChip, who are delivering Socket's SD WiFi card to begin shipping in March (I assume most of this is under NDA). He delivered this gem of information:
1. Any XScale processor device will support SDIO without an on-SD-Card clock handler chip. Why? The PXA250 chipset has built-in support for 1-bit (SDIO) SD!
2. Any OMAP processor device will also support SDIO for the same reason. So . . . all the Smartphones announced so far with OMAP--you guessed it--can theoretically support SDIO."
Now, this doesn't mean you can stick an SD Bluetooth card in your HP iPAQ h1910, the drivers don't exist yet, but if this info proves to be correct, it means it is just a matter of drivers being written. Very cool. 8)
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01-16-2003, 01:15 AM
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Philosopher
Join Date: Jul 2003
Posts: 541
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Very interesting. I wonder if SDIO on said non-SDIO devices will be like the old Winmodems, instead of being done on hardware, it's done in software.
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01-16-2003, 01:15 AM
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Thinker
Join Date: Dec 2002
Posts: 323
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Maybe
I have heard this before, but got no confirmation.
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01-16-2003, 01:25 AM
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Oracle
Join Date: Aug 2006
Posts: 864
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in that case the Ipaq 1910 just became a whole lot more attractive!!!
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01-16-2003, 01:28 AM
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Thinker
Join Date: Jun 2002
Posts: 312
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So does this mean that a vendor such as Symbol needs to write an appropriate driver for an upcoming SDIO card such as 802.11b and it will work?
Question is, will the product vendor be responsible for this or will it be up to "enterprising individuals" to write it?
802.11b for my 1910 would be the move!
__________________
PDA Lineage:HS Visor->Visor Prism->Casio EM-500->Casio E-200->HP Jornada 568->Ipaq 1910->IPAQ 4150->IPAQ 2750 with Motorola RAZR V3->Imate K-JAM->Treo 750->HTC Touch Cruise
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01-16-2003, 01:32 AM
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Intellectual
Join Date: Aug 2007
Posts: 238
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It'd make it really easy for HP to come out with an updated 1910 with a 300 MHz processor and SDIO slot; all they have to do is "flip" a couple of software switches.
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01-16-2003, 01:32 AM
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Pupil
Join Date: Jul 2002
Posts: 13
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The chip supports SDIO, but is it wired for it? The XScale supports serial I/O as well but you can't use it on the iPAQ 1910...
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01-16-2003, 01:37 AM
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Thinker
Join Date: Jul 2003
Posts: 335
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All depends on IRQ line...
Quote:
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Originally Posted by mterlouw
The chip supports SDIO, but is it wired for it? The XScale supports serial I/O as well but you can't use it on the iPAQ 1910...
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I agree.
The SDIO specification is exactly as the SD card specification apart from a IRQ interrupt on pin 8 which should be connected to an GPIO if they follow the Intel datasheet.
It all depends on whether the IRQ is connected. If it is then it should be merely a matter of programming. If it isn't then it depends on how important the IRQs are from the SDIO device, and whether there is a way to poll its status instead.
My 2c
PJE
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01-16-2003, 01:39 AM
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Mystic
Join Date: Sep 2006
Posts: 1,608
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If this info holds true, combined with the OC utility my next PDA is going to be the 1910 :lol: I have been really torn between the Axim and the highend Sony (not the $800 brick). I loved the size and weight of 1910, but the lack of SDIO and a slower xscale speed ruled it out. Now it zooms to the top of my list. The Axim is still nice but compared to the 1910 it's a brick.
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01-16-2003, 01:53 AM
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Thinker
Join Date: Feb 2002
Posts: 414
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Could this really be true?
How could Dell, HP, and others not know this? A software driver is all it needs? Why would it cost $40 more to make a SDIO slot if that is all it took? Wouldn't some enterprising SD/ camera maker have by now shipped drivers for at least their own camera and the slots on the few models without SDIO built into the hardware?
I have understood as above, that there are two more hardware leads that would have to be connected.
But, it is clear that this is exactly the case (drivers only needed) in the Sony NX70 and it's lack of CF memory card support. Except for the fact that Sony could surely do all the drivers for $5 per Clie shipped if they wanted to. They don't want to so that they can sell memory sticks. What would be the reason for Dell not to write drivers for the Axims? None, that I can think of.
It would be terrific but I just don't think this engineer is right.
But, I'm just a mailman off in middle America.
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Linear Mode
