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Dell Axim X50/X51(v) Hardware

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If you have any information to add to what is on this page already, please do so =] The more we know, the sooner we can make this work.

GPIO PINS

We learn more every day about the GPIOs on the x50. I believe that some of the functions that we haven't yet figured out have to do with our current inability to interface with the ASIC chip, the Toshiba TC200G.

These GPIOs were taken from: http://bateman.dhs.org/~richard/tmp/arm/gpio_map.xml (xml/xslt format)

Please feel free to update the GPIO list if you are aware of any omissions/mistakes.

X50(v) PROCESSOR

I have also heard reports of people being able to clock up the 312mhz model to 512mhz easily. This must be due to good fabrication techniques so if we could include some dynamic over-clocking/under-clocking based on the CPU load I would be very happy.

http://www.intel.com/design/pca/prodbref/253820.htm

x50(v) RAM BASE ADDRESS

RAM CHIPS

Infineon 
HYB25L256160AC-7.5 
SVV05084 

Datasheet for these chips can be found here

FLASH ROM CHIPS

ROM (right one):

4000L0YBQ0 
A4477161 
Z4471046A 

ROM (left one):

4000L0YBQ0 
A4477161 
Z4471061A 

There is some board where people are discussing something about flash with that part number (4000L0YBQ0). Unfortunately I can not read this language. If anyone can, than there is chance to find out what is it.

The flash chips in the X50v start with '4400' instead of '4000', and reading the pdf http://www.intel.com/design/flcomp/datashts/25263302.pdf referenced on JohnCurrey 's page, that may mean they contains a stack of 2 256Mbit chips per package instead of one per package. If the x50 has 64MB flash, and the X50V 128MB flash, then that is likely what is going on (???).

x50v GRAPHICS CONTROLLER

The 2700G graphics chip (INTEL/INTRINSYC 2700G/MARATHON/MBX_Lite 16MB VRAM VERSION) in the x50v is in fact the PowerVR MBX Lite which has been licenced from Imagination Technologies.

So Imagination Technologies developed the PowerVR MBX Lite, they have then licenced the design to Intel/Intrinsyc(2700G), who jointly produced the 2700G from this design. The 2700G is then sold in conjunction with the PXA27x to Dell(x50v) and other OEMs.

http://www.us.design-reuse.com/articles/article10055.html

http://en.wikipedia.org/wiki/PowerVR#PowerVR_MBX

Intel 2700G Product Page http://www.intel.com/design/pca/prodbref/300571.htm

Other PXA27x/2700G Devices/DVKs

Sophia Systems Sandgate 2G http://www.sophia.com/Products/SG2G.html

CerfPod 270M http://www.intrinsyc.com/products/mob_ref_sys/cerfpod_270_m/

Advance Tech M.A.G.I.C. http://www.advancetc.com/

Intrinsyc's Carbonado http://www.intrinsyc.com/products/mob_ref_sys/intel_2700g/

http://www.intrinsyc.com/products/mob_ref_sys/

Wiki Info http://en.wikipedia.org/wiki/Intel_2700g

The 2700G can drive an external display up to 1024x768 (with 32-bit color) or 1280x1024 (with 16 bit colour)

The 2700G is based on the PowerVR MBX chipset. It is the sucessor to the PowerVR2 chip which has been used for the Dreamcast. A Linux driver for that chip exists <Has anyone contacted the Linux on Dreamcast Project for help?>

http://www.koders.com/c/fidD8989CA3E7AE523F11E5D97C260230E8B942D62B.aspx

The base of the framebuffer for the Intel 2700g lcd/graphics controller that the x50v uses is located at 0x0C00_0000

These are the values of the 2700g registers when it's running in windows ce:

VIDGAM[0:16]

0ffe2200 | 0x00000000 0x00101010 0x00202020 0x00303030
0ffe2210 | 0x00404040 0x00505050 0x00606060 0x00707070
0ffe2220 | 0x00808080 0x00909090 0x00a0a0a0 0x00b0b0b0
0ffe2230 | 0x00c0c0c0 0x00cfcfcf 0x00e0e0e0 0x00f0f0f0
0ffe2240 | 0x00ffffff

GFXGAM[0:16]

0ffe2250 | 0x00000000 0x00101010 0x00202020 0x00303030
0ffe2260 | 0x00404040 0x00505050 0x00606060 0x00707070
0ffe2270 | 0x00808080 0x00909090 0x00a0a0a0 0x00b0b0b0
0ffe2280 | 0x00c0c0c0 0x00cfcfcf 0x00e0e0e0 0x00f0f0f0
0ffe2290 | 0x00ffffff

Plane Control

Video Display

x50(v) AUDIO CHIP: WM8750

http://www.wolfsonmicro.com/products/digital_audio/codecs/WM8750/?flash=false

http://www.wolfson.co.uk/products/digital_audio/codecs/WM8750/

http://www.rpsys.net/openzaurus/patches/alsa/info.html

x50(v) CPLDs

The x50(v) has two Xilinx CPLDs: Xilinx CoolRunner-II 2C64, 64 Macrocells, CP56 0.5mm BGA package, speed rating 7, 0..70 Celcius, 1.8..3.3V,

1..263Mhz, 45 I/O pins in 2 banks part datasheet

(the "Smaller out one")

Xilinx CoolRunner-II 2C128, 128 Macrocells, CP132 0.5mm BGA package, speed rating 7, 0..70 Celcius, 1.8..3.3V, 1..270Mhz, 100 I/O pins in 2 banks

part datasheet

(the "The chips uper than RAM" close to the RAM chips)

CoolRunner-II family webpage, family datasheet, and package details, and part markings

The 2C128 is accompanied by a Texas Instruments LD245A, a 16-bit bus transceiver with 3-state outputs, likely interfacing the CPLD to some kind of 16-bit bus.

x50(v) GATE ARRAY (ASIC)

family webpage and product brief

(the "Biggest out chip")

A Gate Array ASIC is a digital chip similar to a CPLD, but with different performance characteristics, pricing, and generally a much higher amount of logic that they can hold. A Gate Array ASIC can be produced with a lower NRE than a cell-based or full custom ASIC, in exchange for a higher unit price, higher power usage, and lower speed (other alternatives are the structured ASIC and FPGA). Wikipedia on Gate Arrays and ASICs. In summary: the ASIC could be doing any digital logic function that can be done with 22000 or 38000 NAND Logic Gates.

The Asus MyPal730 has a TC200G too. It's unlikely, but not impossible that the two are identical (maybe they each sourced the same chip/design for the same feature).

There is also a 240Mhz TI THS8135 video DAC close to it on the x50v, most likely used by the Intel 2700g.

x50(v) WIFI

TI TNETW1100B

hp4100

hx4700

ACX100

here

From the FCC pictures, it appears that in the x50v, the TNETW1100B is flanked by the MAXIM2820 Wlan tranceiver. I'm not totally sure if I read the label correctly, but it looks like it and the pin count matches, and it's under a combined shield with an area that seems to include a bandpassfilter (the white block) just like in the picture at the bottom of the maxim appnote.

See DellAximX51vWifiInvestigationNotes.

X50 Bluetooth

http://focus.ti.com/lit/ds/slas359/slas359.pdf

Connector

X50v Pin-Out (from: http://www.aximsite.com/boards/showthread.php?t=59614&page=2&pp=25)

Bottom Connector
back of x50v
______----________________________----______
|  1               17   19               35|
| _-_-_-_-_-_-_-_-_-    _-_-_-_-_-_-_-_-_- |
| 2               18   20               36 |
-------------------_____--------------------
front of x50v

X50V uses TTL serial interface (3.3 v).

DTR 14
DSR 13
TX 11
RX 10
RTS 9
CTS 8

VGA Pin# / x50v Pin# / Label Function
1 33 RED Red color signal
2 35 GREEN Green color signal
3 31 BLUE Blue color signal
4 - ID2 Monitor identification bit 2
5 - N.C. Not Connected
6 34 GND-RED Ground Red signal
7 36 GND-GREEN Ground Green signal
8 32 GND-BLUE Ground Blue signal
9 - N.C. Not Connected
10 30 GND-SYNC Ground Sync signal
11 - ID1 Monitor identification bit 1
12 26 ID0 Monitor identification bit 0
13 28 H-SYNC Horizontal Synchronization
14 29 V-SYNC Vertical Synchronization
15 - N.C. Not connected

*********** '''Note: you need a MAX 232 for serial level conversion or you will damage your PDA!''' ************

Expressed in a possibly more useful format,

TOUCHSCREEN

X50(v)

Some information can be found here: http://focus.ti.com/docs/prod/folders/print/ads7846.html

X51(v)

Some information can be found at: http://focus.ti.com/docs/prod/folders/print/tsc2046.html

Keys

The power key is not managed by the matrix keyboard controller.

MoinMoin Powered

Immutable page (last edited 2007-03-23 09:51:19 by PaulEggleton)

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