Q7-928
Q7-928 User Manual - Rev. First Edition: 1.0 - Last Edition: 3.0 - Author: S.B. - Reviewed by P.Z Copyright © 2016 SECO S.r.l.
23
3.2.2
μ
SD Card Slot
NXP i.MX6 processors offer many different SDIO interfaces, that can be used independently one from the other to implement different mass storages media
(internal eMMC, internal SD Card, external SDI/O interface).
Of these interfaces, i.MX6 processor
’
s SDI/O port #4 is carried to a standard
μ
SD card slot, soldered on top side of the module.
3.2.3
Qseven
®
Connector
According to Qseven
®
specifications, all interface signals are reported on the card edge connector, which is a 230-pin Card Edge that can be inserted into
standard 230 pin MXM connectors, as described in Qseven
®
specifications.
Not all signals contemplated in Qseven
®
standard are implemented on MXM connector, due to the functionalities really implemented on Q7-928 CPU module.
Therefore, please refer to the following table for a list of effective signals reported on MXM connector.
For accurate signals description, please consult the following paragraphs.
NOTE: Even pins are available on top side of CPU board; odd pins are available on bottom side of CPU board. Please refer to board photos.
Qseven
®
Golden Finger Connector - CN4
BOTTOM SIDE
TOP SIDE
SIGNAL GROUP
Type
Pin name
Pin nr.
Pin nr. Pin name
Type
SIGNAL GROUP
PWR
GND
1
2
GND
PWR
GBE
I/O
GBE_MDI3-
3
4
GBE_MDI2-
I/O
GBE
GBE
I/O
G
5
6
G
I/O
GBE
GBE
O
GBE_LINK100#
7
8
GBE_LINK1000#
O
GBE
GBE
I/O
GBE_MDI1-
9
10
GBE_MDI0-
I/O
GBE
GBE
I/O
G
11
12
G
I/O
GBE
GBE
O
GBE_LINK#
13
14
GBE_ACT#
O
GBE
N.A.
N.C.
15
16
SUS_S5#
O
PWR_MGMT
PWR_MGMT
I
WAKE#
17
18
SUS_S3#
O
PWR_MGMT
PWR_MGMT
O
SUS_STAT#
19
20
PWRBTN#
I
PWR_MGMT
Please be aware that the
μ
SD card slot is a flip-top type: this means that, in order to insert / extract / change a
μ
SD card, the
heatsink/heatspreader must not be mounted, otherwise it will be impossible to access/open the flip top slot.
