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Getting Started with EZ-BT WICED Modules
Document Number: 002-23400 Rev. **
73
A list of the available I/Os and supported functionality for each I/O of CYBT-423028-02 is shown in
Table 11. CYBT-423028-02 Module Available Connections and Functionality
Solder
Pad
Pad Name
Silicon Port Pin
Name
Functionality
XTALI/O
ADC
GPIO
SuperMux
7
Capable
1
GND
GND
Ground
2
HOST_WAKE
BT_HOST_WAKE
A signal from the CYBT-423028-02 module to the host indicating that the Bluetooth
device requires attention.
3
UART_RXD
BT_UART_RXD
HCI UART Receive Data
4
UART_TXD
BT_UART_TXD
HCI UART Transmit Data
5
UART_RTS
BT_UART_RTS_N
HCI UART Request to Send Output
6
UART_CTS
BT_UART_CTS
HCI UART Clear to Send Input
7
P2
P2
Yes
Yes
8
VCC
VDDIO
Power Supply Input (1.71V ~ 3.63V)
9
P6
P6
Yes
Yes
10
GND
GND
Ground
11
XRES
RST_N
External Reset (Active LOW)
12
P33
P33
IN6
Yes
Yes
13
P25
P25
Yes
Yes
14
P26
P26
Yes
Yes
15
P38
P38
IN1
Yes
Yes
16
P34/P35/P36
P34
P35
P36
IN5 (P34)
IN4 (P35)
IN3 (P36)
Yes
(P34/P35/P36)
Yes
17
P1
P1
IN28
Yes
Yes
18
P0
P0
IN29
Yes
Yes
19
P29
P29
IN10
Yes
Yes
20
P13/P23/P28
P13
P23
P28
IN22 (P13)
IN12 (P23)
IN11 (P28)
Yes
(P13/P23/P28)
Yes
21
P10/P11
P10
P11
IN25 (P10)
IN14 (P11)
Yes
(P10/P11)
Yes
22
P17
P17
IN18
Yes
Yes
23
P7
P7
Yes
24
P4
P4
Yes
25
P16
P16
IN19
Yes
26
XTALI_32K/P15
8
XTALI_32K
P15
External Oscillator
Input (32 kHz)
IN20 (P15)
Yes (P15)
Yes (P15)
27
XTALO_32K
XTALO_32K
External Oscillator
Output (32 kHz)
28
GND
GND
Ground
7
The CYBT-423028-02 can configure GPIO connections to any Input/Output function described in
8
P15 should not be driven HIGH externally while the part is held in reset (it can be floating or driven LOW). Failure to do so may cause some current to
flow through P15 until the device comes out of reset.