User's Manual

User Guide
Figure 3 EVB Bottom (Top View)
2.1 Pin Description
No. Name Type Description
1 RTC_CLK I Slow clock input option (default: NU)
2 Ground G Ground
3 Ground G Ground
4 WLAN_EN_SOC I WLAN enable
5 VBAT_IN P 3.6-V typical voltage input
6 Ground G Ground
7 VBAT_IN P 3.6-V typical voltage input
8 VIO_IN P Vio 1.8-V (I/O voltage) input
9 Ground G Ground
10 N.C No connection
11 WL_RS232_TX O WLAN tool RS232 output
12 N.C No connection
13 WL_RS232_RX I WLAN tool RS232 input
14 N.C No connection
15 WL_UART_DBG O WLAN Logger output
16 N.C No connection
17 N.C No connection
18 Ground G Ground
19 Ground G Ground
20 SDIO_CLK_WL I WLAN SDIO clock
21 N.C No connection
22 Ground Ground
23 N.C No connection
24 SDIO_CMD_WL I/O WLAN SDIO command
25 N.C No connection
26 SDIO_D0_WL I/O WLAN SDIO data bit 0
27 N.C No connection
28 SDIO_D1_WL I/O WLAN SDIO data bit 1
29 N.C No connection