PICO-IMX6UL-EMMC REV. A1. HARDWARE MANUAL
– VER 1.00 – MAR 28 2016
Page
23
of
54
Table 7 - BCM4339 Bluetooth Signal Description
CPU
BALL
PAD NAME
Pinmux
(mode)
Signal
I/O
Description
M16
GPIO1_IO04
uart5.TX
(mode8)
BT_UART_RXD
I
Bluetooth UART Serial
Input. Serial data input for
the HCI UART Interface
M17
GPIO1_IO05
uart5.RX
(mode8)
BT_UART_TXD
O
Bluetooth UART Serial
Output. Serial data output
for the HCI UART
Interface.
M15
GPIO1_IO09
uart5.CTS_B
(mode8)
BT_UART_CTS
I/O Bluetooth UART Clear to
Send. Active-low clear-to-
send signal for the HCI
UART interface.
N17
GPIO1_IO08
uart5.RTS_B
(mode8)
BT_UART_RTS
I/O Bluetooth UART Request
to Send. Active-low
request-to-send signal for
the HCI UART interface.
N14
JTAG_TRST_B
sai2.TX_DATA
(mode2)
BT_PCM_IN
I
PCM data input
M14
JTAG_TCK
sai2.RX_DATA
(mode2)
BT_PCM_OUT
O
PCM data output
N16
JTAG_TDI
sai2.TX_BCLK
(mode2)
BT_PCM_CLK
I/O
PCM clock
N15
JTAG_TDO
sai2.TX_SYNC
(mode2)
BT_PCB_SYNC
I/O
PCM sync signal
N9
SNVS_TAMPER8 gpio5.IO[8]
(mode5)
BT_WAKE
I
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.
R6
SNVS_TAMPER9 gpio5.IO[9]
(mode5)
BT_RST_N
I
Low asserting reset for BT
core
B6
NAND_DATA05
gpio4.IO[7]
(mode5)
BT_HOST_WAKE
O
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.
