User's Manual

Bluegiga Technologies Oy
Page 8 of 40
2 Pinout and Terminal Description
WT11i
GND
VDD_PA
PIO2
PIO3
UART_RTS#
UART_RX
PCM_OUT
USB+
USB-
UART_CTS#
PCM_IN
PCM_CLK
PCM_SYNC
GND
GND
AIO
UART_TX
PIO5
SPI_MOSI
SPI_MISO
SPI_CLK
SPI_CS#
PIO4
PIO7
PIO6
RESET
VDD
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Figure 1: WT11i connection diagram
PIN
NUMBER
PAD TYPE DESCRIPTION
RESET 17
Input, internal 220kohm
pull-down, internal start
u
p
reset circuitr
y
Active hi
g
h reset. Keep hi
g
h for >5 ms
to cause a reset
GND
1, 14, 15,
28
GND GND
VDD_P
A
2 Supply voltage Supply voltage for the RF power amplifier
VDD 16 Supply voltage
Supply voltage for BC4 and the flash
memory
Table 1: Supply and RF Terminal Descriptions