Rev 1.0
Page 20 of 69
Generic Q7 Carrier Card Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
Pin No Pin Details
Description
1
SDIO _WP
Write Protect
2
SDIO _CD#
Card Detect Signal
3
SDIO_DAT1
Data Line (bit1)
4
SDIO_DAT0
Data Line (bit0)
5
SDIO_DAT7
Data Line (bit7)
6
GND
Ground
7
SDIO_DAT6
Data Line (bit6)
8
SDIO _CLK
Clock
9
SD_3V3
Supply Voltage
10
VSS
Ground
11
SDIO_DAT5
Data Line (bit5)
12
SDIO_CMD
Command Response
13
SDIO_DAT4
Data Line (bit4)
14
SDIO_DAT3
Data Line (bit3)
15
SDIO_DAT2
Data Line (bit2)
Figure 4: SD/MMC Connector Pin Out
2.4
Debug Connectors
Q7 Generic Carrier Card provides a 9-Pin D-Sub Debug UART Connector and JTAG connector for
debugging. Both debug interfaces are sharing same signals from MXM connector, since MUX
select line is used to select either UART or JTAG. Q7 Generic Carrier Card provided jumper
option (J62) to select Debug ports. For further information on these signals refer section
“
Manufacturing Signals
”
of Qseven spec R1.20. In default jumper will be open and UART will be
supported.
J62 Jumper Position Debug Port
Open
UART Port
Close
JTAG Port
Figure 5: Debug port selection
2.4.1
9-Pin D-Sub Debug UART
UART will be used for Debug purpose. This is not the full functional UART and supports only
Serial TX and RX signals. External RS232 Transceiver will be used to convert the Processor CMOS
UART Transmit signal into RS232 signals at the driver section and convert the RS232 receive
signals into CMOS signals at the Receiver section. This RS232 signals will be connected to 9-Pin
