Like i can see from this picture there is the Layout rev 1.3 which is the same as eSata SeevaPlug.
Do you know what are the purpose of the following connectors ?
1. J4 - named JTAG ( unmounted )
2. J6 - named I2C
3. and another one called UART
Strangely, on my eSATA Sheevaplug (less than a month old), there is no connector fitted in the J6 position ("I2C") but there
is a connector at J4 ("JTAG"). Also, J2 is of a different type (same as the rest).
The "UART" connector is J7 (4-pin) and its two middle pins connect to two pins on J6 (6-pin), as well as elsewhere. One of these is at 3.3V and the other at 0V. Two other pins on J6 go elsewhere and are both at 3.3V. The final two pins on J6 look like a 3.3V supply and ground.
J2 (2-pin), despite being marked as "2.5V", has 1.0V on it.
The 10-way connector near the eSATA port (either J16 or J10) has 0V on all pins except one at the end which is 3.3V.
There are three missing 4-way connectors, J11, J13 and J14. All have 5V at one end, presumably ground at the other, and hence look suspiciously like USB host ports.
