User's Manual

17
18 PIO6 I/O Programmable I/O lines
19 PIO7 I/O Programmable I/O lines
20 PIO4 I/O Programmable I/O lines
21 NCSB I Chip selection for SPI (internal pull up, active low)
22 SCLK I/O SPI Clock (internal pull down)
23 MISO O SPI data output (pull down)
24 MOSI I SPI data input (pull down)
25 PIO5 I/O Programmable I/O lines
26 TXD O UART TX (internal pull up)
27 AIO I/O Analog I/O line
28 GND GND Ground
Table 6: WT11 PIN configuration
Notes: Voltage level of input (I), output (O) and input/output (I/O) pins is 3.3V.