Specific Signals; Considerations About Usb Signals - Seco Qseven QUADMO747-E6 Series User Manual

QUADMO747-E6xx
User Manual - Rev. First Edition: 1.0 - Last Edition: 1.2- Author: S.B. - Reviewed by G.M.

3.2.3 Specific signals

On Quadmo747-E6xx finger connector there are some signals that are not implemented in
® Specifications rel.1.20, but that don't interfere with standard Carrier Boards.
Qseven
The following signals differ from the standard:
GPIO signals
Pin 91: GPIO5, General purpose I/O
Pin 202: GPIO9, General purpose I/O
These signals are related to Intel
and are carried, respectively, on pins dedicated to USB_CC and SPI_CS1# signals.
Since these signals are general purpose Input/Outputs, software programmable, they don't cause
any kind of incompatibilities with standard Qseven
HD Audio Serial Data In 1 signal
Pin 56: HDA_SDI1: HD Audio Serial Data In 1 signal
™
®
Intel Atom E6xx series processors have two serial data inputs, while Qseven
contemplate only one SDI signal.
For this reason, in order not to lose the second Serial Data Input offered by the CPU, related signal
has been carried out on pin 56, that for Qseven
Standard Carrier Boards that leave pin 56 not connected, can be used without problem also with
Quadmo747-E6xx board.

3.2.4 Considerations about USB signals

®
According to Qseven
port.
Configuration of this port should be made using USB_ID pin: If the signal is detected as being 'high
active', USB Port#1 must be configured as USB Client.
® Platform Controller Hub doesn't have programmable Host/Client USB ports; instead, it
Intel
makes available 6 x USB 2.0 Host ports and one (fixed) USB Client port.
For this reason, on Quadmo747-E6xx has been used an USB switch.
When USB_ID is detected high, then USB Client signals will be available on USB_P1+/- pins, and
®
USB Port#1 of Intel PCH EG20T will be available on USB_P6+/- pins.
When USB_ID is detected low, then USB Client signals are not carried to golden finger connector,
and USB Port#1 of Intel
For this reason, please be aware that USB_P6+/- signals (pin 76 and 78) will be connected only in
case USB P1 port is used as a client, and USB_ID is driven high according to Qseven
specifications.
®
PCH EG20T General Purpose I/O pins GPIO#5 and GPIO#9,
specification, USB port #1 can be optionally used as a USB client or Host
®
PCH EG20T will be available on USB_P1+/- pins.
Copyright © 2012 SECO s.r.l.
QUADMO747-E6xx
®
Rel1.20 compliant Carrier boards.
®
Specifications is define as a Reserved Pin.
Page 19
®
specifications
®