PICO-IMX6 REV. A1. HARDWARE MANUAL
– VER 1.01 – JAN 28 2016
Page
25
of
64
Table 4 - BCM4339 WiFi Signal Description
i.MX6
BALL
PAD NAME
Signal
I/O
Description
A22
SD2_DAT0
SDIO_D0
I/O
MMC/SDIO Data bit 0
E20
SD2_DAT1
SDIO_D1
I/O
MMC/SDIO Data bit 1
A23
SD2_DAT2
SDIO_D2
I/O
MMC/SDIO Data bit 2
B22
SD2_DAT3
SDIO_D3
I/O
MMC/SDIO Data bit 3
F19
SD2_CMD
SDIO_CMD
I/O
MMC/SDIO Command
C21
SD2_CLK
SDIO_CLK
I/O
MMC/SDIO Clock
R2
GPIO_16
WL_HOST_WAKE
O
General purpose interface pin. This pin
is high-impedance on power up and
reset. Subsequently, it becomes an
input or output through software control.
This pin has a programmable weak pull-
up/down.
R3
GPIO_7
WL_REG_ON
I
Used by PMU (OR-gated with
BT_REG_ON) to power up or power
down internal BCM4339 regulators used
by the WLAN section. This pin is also a
low-asserting reset for WLAN only
(Bluetooth is not affected by this pin).
