M
M
o
o
d
d
u
u
l
l
e
e
I
I
n
n
t
t
e
e
g
g
r
r
a
a
t
t
i
i
o
o
n
n
G
G
u
u
i
i
d
d
e
e
V
V
e
e
r
r
s
s
i
i
o
o
n
n
2
2
.
.
1
1
Redpine Signals, Inc. Proprietary and Confidential
Page 36
2.2
Reference Schematics and BOM
The default values of all the GPIO pins on powering up RS9113 shall be set to
HIGH and are configured as outputs. The following sections provide reference
schematics for interconnecting the module over SPI, SDIO, USB host
interfaces. Given a module without integrated antenna, RF_OUT_2 is the
default RF port to connect an antenna as shown in the following schematics.
The other RF port RF_OUT_1 should be terminated as shown in the
schematics if not used.
The following table describes the host interface mode selection for
WiSeConnect and Connect-io-n family by using pull resistors on HOST_SEL_0
and HOST_SEL_1 pins. Internally, both the pins are pulled high.
Note: Host select pin configuration as shown in the table below for
UART is applicable for WiSeConnect/Connect-io-n module families.
For n-Link module family, UART shall function in conjunction with
SPI/SDIO/USB irrespective of Host select pins configuration
.
Mode
HOST_SEL_1
HOST_SEL_0
UART
0
0
SPI
1
0
USB
0
1
SDIO
1
1
Table 8: Host Interface Selection
2.2.1
Power Supply
It is recommended to have a tightly regulated power supply which is 3.3V
+/- 5% and can handle a continuous current of 500mA. As a general practice
it is always suggested to have a 30% buffer on current rating of the power
supply.
