2.2 Pin Details of WINCS02 Module

This section provides details on pin diagrams and pinout table of WINCS02 Module.

Table 2-2. **WINCS02 Module Pinout Table**
Pin Number	Pin Name	Pin Type	Pin Description
1	NC	—	No connection
2	I2C_SCL	I	I²C clock connected to Trust&GO device. Recommended to connect external pull-up resistor of 1.2K on the host board for WINCS02PC and WINCS02UC devices.
3	I2C_SDA	I/O	I²C data connected to Trust&GO device. Recommended to connect external pull-up resistor of 1.2K on the host board for WINCS02PC and WINCS02UC devices.
4	MCLR	I	Master Clear Reset Input (Active low)
5	PTA_WLAN_ACTIVE	O	PTA interface, WLAN Active indication output to Bluetooth® Coexistence device
6	PTA_BT_PRIO	I	PTA interface, Bluetooth Coexistence device priority indication input to WINCS02
7	Reserved	I/O	Reserved pin Do not connect.
8	NC	—	No connection
9	GND	P	Ground
10	DFU_RX/STRAP1	I/O	Device Firmware Update, receive signal
10	DFU_RX/STRAP1	I/O	Host interface configuration, Strapping1 pin. For more details on exact configuration, refer to Table 2-3.
11	Reserved⁽⁵⁾	—	Reserved pin Connect to an I/O pin (tri-stated) of a host device or to an external switch for future use.
12	GND	P	Ground
13	INTOUT	O	Interrupt request (Active low) from the Wi-Fi® module
14	UART1_TX⁽⁴⁾	I/O	Used for external antenna calibration Connect this signal to a test point or a pin header.
15	SDI1	I	SPI1, Serial Data In Connect to Serial Data Out of the host device
16	CS1	I	SPI1, Chip Select (Active low) Connect to the Chip Select of host device
17	SDO1	O	SPI1, Serial Data Out Connect to the Serial Data In of the host device
18	SCK1	I	SPI1, Serial Clock Connect to the Serial Clock of the host device
19	UART1_RX⁽⁴⁾	I/O	Used for external antenna calibration Connect this signal to a test point or a pin header.
20	VDD	P	VDD power supply (3.0-3.6V)
21	RTCC_OSC_IN/PTA_BT_ACTIVE⁽¹⁾⁽³⁾	I	32.768 KHz RTCC Oscillator input
21	RTCC_OSC_IN/PTA_BT_ACTIVE⁽¹⁾⁽³⁾	I	PTA interface, Bluetooth Coexistence device active indication input to WINCS02
22	RTCC_OSC_OUT⁽³⁾	O	32.768 KHz RTCC Oscillator output
23	VDDIO	P	I/O power supply (3.0-3.3V)
24	TP	P	Test point: 1.5V⁽²⁾
25	NC	—	No connection
26	DFU_TX/STRAP2	I/O	Device Firmware Update, transmit signal
26	DFU_TX/STRAP2	I/O	Host interface configuration, Strapping2 pin. For more details on exact configuration, refer to the Table 2-3.
27	UART2_TX	I/O	UART2 transmit signal for the firmware log. UART setting: 460,800 baud, 8N1 and no flow control
28	GND	P	Ground
29	GND Paddle	P	Thermal ground paddle
Note: This pin can be used either as an oscillator input pin or as PTA BT_ACTIVE. The WINCS02 Module does not support both the functionality together. Do not connect any signal to source the voltage as this is for internal purposes only. Current firmware does not support RTCC Oscillator function; it is recommended to have an option to mount RTCC Oscillator in the design to upgrade with the future version of firmware releases. For more details, refer to the WINCS02 Module External Antenna Calibration Guide (DS50003753). Do not leave this pin unconnected. Follow the directions in the Pin Description column for future upgrades.