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CC3100MOD_15 Datasheet, PDF (8/41 Pages) Texas Instruments – CC3100MOD SimpleLink™ Certified Wi-Fi® Network Processor Internet-of-Things Module Solution for MCU Applications
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CC3100MOD
SWRS161 – DECEMBER 2014
www.ti.com
3.2 Pin Attributes
Table 3-1 lists the pin descriptions of the CC3100MOD module.
NOTE
If an external device drives a positive voltage to signal pads when the CC3100MOD is not
powered, DC current is drawn from the other device. If the drive strength of the external
device is adequate, an unintentional wakeup and boot of the CC3100MOD can occur. To
prevent current draw, TI recommends one of the following:
• All devices interfaced to the CC3100MOD must be powered from the same power rail as
the CC3100MOD.
• Use level-shifters between the CC3100MOD and any external devices fed from other
independent rails.
• The nRESET pin of the CC3100MOD must be held low until the VBAT supply to the
device is driven and stable.
MODULE PIN
NO.
1
2
3
4
5
6
7
8
9
10
MODULE PIN NAME
GND
GND
NC
nHIB
HOST_SPI_CLK
HOST_SPI_DIN
HOST_SPI_DOUT
HOST_SPI_nCS
NC
FORCE_AP
TYPE
-
-
-
I
I
I
O
I
-
-
11
HOSTINTR
O
12
NC
-
13
NC
-
14
NC
-
15
NC
-
16
GND
-
17
NC
-
18
NC
-
19
RESERVED
-
20
NC
-
21
RESERVED
-
22
NC
-
23
SOP2
-
24
SOP1
-
25
NC
-
26
NC
-
27
GND
-
28
GND
-
29
NC
-
30
GND
-
Table 3-1. Pin Attributes
MODULE PIN DESCRIPTION
Ground
Ground
Reserved. Do not connect
Hibernate signal, active low. Refer to Figure 4-8.
Host interface SPI clock
Host interface SPI data input
Host interface SPI data output
Host interface SPI chip select (active low)
Reserved. Do not connect
For forced AP mode, pull to high on the board using a 100-kΩ resistor. Otherwise,
pull down to ground using a 100-kΩ resistor.(1)
Interrupt output
Reserved. Do not connect
Reserved. Do not connect
Reserved. Do not connect
Reserved. Do not connect
Ground
Reserved. Do not connect
Reserved. Do not connect
Reserved. Do not connect
Unused. Do not connect.
Add 100-kΩ external pulldown resistor
Reserved. Do not connect
Add 10k pulldown to ground
Reserved. Do not connect.
Reserved. Do not connect
Reserved. Do not connect
Ground
Ground
Reserved. Do not connect
Ground. Reference for RF signal
(1) Using a configuration file stored on flash, the vendor can optionally block any possibility of bringing up AP using the FORCE_AP pin.
8
Terminal Configuration and Functions
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