hardware guide - WSD377
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Compex Systems Pte Ltd | www.compex.com.sg | (+65) 6288 8220 | [email protected] | Last Updated: 24/10/2017 WH HB
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No.
Name
Type
Description
No.
Name
Type
Description
1
GND
-
Ground connections
23
NC
-
Floating (Don’t connect to
ground)
2
WL_BT_ANT
I/O
RF I/O port
24
LPO
I
External Low Power Clock
input (32.768KHz)
3
GND
-
Ground connections
25
PCM_OUT
O
PCM Data output
4
NC
-
Floating (Don’t connect to
ground)
26
PCM_CLK
I/O
PCM clock
5
NC
-
Floating (Don’t connect to
ground)
27
PCM_IN
I
PCM data input
6
HOST_WAKE_
BT
I
HOST to wake-up Bluetooth
device
28
PCM_SYNC
I/O
PCM sync signal
7
BT_WAKE_
HOST
O
Bluetooth device to wake-up
HOST
29
NC
-
Floating (Don’t connect to
ground)
8
NC
-
Floating (Don’t connect to
ground)
30
NC
-
Floating (Don’t connect to
ground)
9
VCC33
P
Main power voltage source
input 3.3V
31
GND
-
Ground connections
10
GND
-
Ground connections
32
NC
-
Floating (Don’t connect to
ground)
11
NC
-
Floating (Don’t connect to
ground)
33
GND
-
Ground connections
12
WL_EN
I
Enable pin for WLAN device
ON: pull high ; OFF: pull low
34
BT_EN
I
Enable pin for Bluetooth
device
ON: pull high ; OFF: pull low
13
WL_HOST_
WAKE
O
WLAN to wake-up HOST
35
NC
-
Floating (Don’t connect to
ground)
14
SDIO_DATA_2
I/O
SDIO data line 2
36
GND
-
Ground connections
15
SDIO_DATA_3
I/O
SDIO data line 3
37
NC
-
Floating (Don’t connect to
ground)
16
SDIO_DATA_
CMD
I/O
SDIO command line
38
NC
-
Floating (Don’t connect to
ground)
17
SDIO_DATA_
CLK
I/O
SDIO clock line
39
Debug_UART_
TXD
O
Floating (Don’t connect to
ground)
18
SDIO_DATA_0
I/O
SDIO data line 0
40
Debug_UART_
RXD
I
Floating (Don’t connect to
ground)
19
SDIO_DATA_1
I/O
SDIO data line 1
41
UART_RTS_N
O
Bluetooth UART interface
20
GND
-
Ground connections
42
UART_TXD
O
Bluetooth UART interface
21
GPIO11
-
Reserved
43
UART_RXD
I
Bluetooth UART interface
22
VDDIO
P
I/O Voltage supply input 1.8V
or 3.3V
44
UART_CTS_N
I
Bluetooth UART interface
GPIO Pin Mapping