ADLINK Technology Q7-AL, User Manual

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20
Pinouts and Signal Descriptions
3.3.3. SDIO
Signal Pin Description I/O PU/PD Comment
SDIO_CD# 43 SDIO Card Detect. This signal indicates when an
SDIO/MMC card is present. I/O
CMOS
3.3V PU
100K
3.3V
SDIO_CLK 42 SDIO Clock. With each cycle of this signal a one-bit
transfer on the command and each data line occurs. O
CMOS
3.3V
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
CMOS
3.3V
OD/PP
SDIO_WP 46 SDIO Write Protect. This signal denotes the state of the
write-protect tab on SD cards. I/O
CMOS
3.3V PU
100K
3.3V
SDIO_PW R# 47 SDIO Power Enable. This signal is used to enable the
power being supplied to a SD/MMC card device. O
CMOS
3.3V PU
100K
3.3V
SDIO_DAT0-3 48
(DAT1);
49
(DAT0);
50
(DAT3);
51
(DAT2) SDIO Data lines. These signals operate in push-pull mode. I/O
CMOS
3.3V PP
3.3.4. Audio Signals
Signal Pin Description I/O PU/PD Comment
HDA_RST#
I2S_RST# 61 HD Audio Codec Reset. Multiplexed with
I2S Codec Reset. O
CMOS
3.3V
HDA_SYNC
I2S_WS 59 Serial Bus Synchronization.
Multiplexed with I2S Word Select from
Codec.
O
CMOS
3.3V
HDA_BITCLK
I2S_CLK 63 HD Audio 24 MHz Serial Bit Clock from
Codec. Multiplexed with I2S Serial Data
Clock from Codec. O
CMOS
3.3V
HDA_SDO
I2S_SDO 67 HD Audio Serial Data Output to Codec.
Multiplexed with I2S Serial Data Output
from Codec.
O
CMOS
3.3V
HDA_SDI
I2S_SDI 65 HD Audio Serial Data Input from Codec.
Multiplexed with I2S Serial Data Input
from Codec. I
CMOS
3.3V