Source: Blog | Raspberry Pi
Enjoy!
I thought the BCM chip only had two USB ports with a shared Ethernet (can't find the original schematics on my desk top at the moment). If that is correct, is there an extra hub chip to provide the additional USB?
I like the new form factor, but I have to say as far as the USB is concerned, I'm considering investing in the Raspiado Kickstarter project.
Colin
The BCM only has ONE USB port. If it has two, the (pins for the) second one is(are) used for something else.
The two USB ports on the original B are from the LAN9512, which is an ethernet chip with built-in 2-port USB hub.
There is also the LAN9513 which is exactly the same, except for a 3-port USB hub... And the 9514 with a four-port USB hub........
I've tried reading the numbers on the chip in the pictures, but failed, after researching the likely candidates I now know it's the 9514, and knowing that you can decipher the numbers on the chip in the published photos. (I used a picture on hackaday).
The new chip is the LAN9514 from SMSC/Microchip, 1xEthernet 4xUSB Hub downstream
-J
Meet the Raspberry Pi B+ there are some in this blog.