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EDM1-IMX6 HARDWARE MANUAL
– VER 1.00 – NOV 14 2019
Page
24
of
80
Table 5
– Bluetooth Signal Description
i.MX6
BALL
PAD NAME
Signal
I/O
Description
F22
EIM_D24
UART3_TXD
O
Bluetooth UART Serial Input. Serial
data input for the HCI UART Interface
G22
EIM_D25
UART3_RXD
I
Bluetooth UART Serial Output. Serial
data output for the HCI UART Interface.
D25
EIM_D23
UART3_CTS
I/O
Bluetooth UART Clear to Send. Active-
low clear-to-send signal for the HCI
UART interface.
F23
EIM_EB3
UART3_RTS
I/O
Bluetooth UART Request to Send.
Active-low request-to-send signal for
the HCI UART interface.
U6
KEY_ROW1
AUD5_RXD
I
Integrated Interchip Sound (I
2
S)
channel receive data line
V6
KEY_ROW0
AUD5_TXD
O
Integrated Interchip Sound (I
2
S)
channel transmit data line
W5
KEY_COL0
AUD5_TXC
O
Integrated Interchip Sound (I
2
S)
channel word clock signal
U7
KEY_COL1
AUD5_TXFS
O
Integrated Interchip Sound (I
2
S)
channel frame synchronization signal
P3
CSI0_DATA_EN
GPIO5_IO20
I
Host UART wake up. Signal from the
module to the host indicating that the
module requires Attention.
• Asserted: Host device must wake-up
or remain awake.
• Deserted: Host device may sleep
when sleep criteria are met.
The polarity of this signal is software
configurable and can be asserted high
or low.
M2
CSI0_DAT12
GPIO5_IO30
O
Bluetooth device wake-up: Signal from
the host to the module indicating that
the host requires attention.
• Asserted: Bluetooth device must
wake-up or remain awake.
• Deserted: Bluetooth device may sleep
when sleep criteria are met.
The polarity of this signal is software
configurable and can be asserted high
or low.