Copyright
©
2017
congatec
AG
QA50m10
47/61
USB_VBUS
91
USB VBUS pin
5V tolerant
VBUS resistance to be placed on the module
VBUS capacitance to be placed on the carrier board
I 5V
Passive
Analog
PD 1M
USB_DRIVE_
VBUS
56
USB power enable pin for USB Port 1.
Enables the power for the USB Dual role port on the carrier
O 3.3V
CMOS
Table 17
SDIO Signal Descriptions
Signal
Pin # Description
I/O
PU/PD Comment
SDIO_CD#
43
SDIO Card Detect. This signal indicates when a SDIO/MMC card is present.
I/O 3.3V
PU 20k
SDIO_CLK
42
SDIO Clock. With each cycle of this signal a one-bit transfer on the command and each
data line occurs. This signal has maximum frequency of 48 MHz.
O 3.3V
PD 20k
SDIO_CMD
45
SDIO Command/Response. This signal is used for card initialization and for command
transfers. During initialization mode this signal is open drain. During command transfer
this signal is in push-pull mode.
I/O 3.3V
OD/PP
PU 20k
SDIO_LED
44
SDIO LED. Used to drive an external LED to indicate when transfers occur on the bus.
O 3.3V
SDIO_WP
46
SDIO Write Protect. This signal denotes the state of the write-protect tab on SD cards.
I/O 3.3V
PU 20k
SDIO_PWR#
47
SDIO Power Enable. This signal is used to enable the power being supplied to a SD/
MMC card device.
O 3.3V
SDIO_DAT0
SDIO_DAT1
SDIO_DAT2
SDIO_DAT3
SDIO_DAT4
SDIO_DAT5
SDIO_DAT6
SDIO_DAT7
49
48
51
50
53
52
55
54
SDIO Data lines. These signals operate in push-pull mode.
I/O 3.3V
OD/PP
PU 20k
Only 4-bit SDIO interface.
SDIO_DAT[7:4] are not connected
Note
The conga-QA5 also supports UHS-I speed that uses I/O 1.8V.