Pcb Interface; Table 2-2 Xpico And Xpico Wi-Fi Pin Connections - Lantronix xPico XPW100A003-01-B Integration Manual

PCB Interface

The xPico embedded device servers has a serial interface compatible with data rates up
to 921,600 bps (in high-performance mode). The serial signals (RX, TX, RTS, CTS, and all
CPs) are 3.3V CMOS logic level and 5V tolerant. The serial interface pins include +3.3V,
ground, and reset. The serial signals usually connect to an internal device, such as a
UART. For applications requiring an external cable running with RS-232 or RS422/485
voltage levels, the xPico device must interface to a serial transceiver chip. All
configurable I/O pins are 3.3V CMOS logic level and 5V input tolerant. The xPico unit
requires a mating connector. Customers should layout their PCB for Hirose part number
DF40C(2.0)-40DS-0.4V(51).
An external Ethernet magnetic module and RJ45 is required to interface the xPico
embedded device server to a standard 10/100Mbps Ethernet network.
An external antenna attached to the xPico Wi-Fi U.FL connector is required to connect to
an 802.11b/g/n wireless network.
Shown below is the xPico pin connection diagram highlighting the differences between
the xPico and xPico Wi-Fi embedded device server.
Pin#
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
xPico® Embedded Device Server Integration Guide

Table 2-2 xPico and xPico Wi-Fi Pin Connections

xPico Wired xPico Wi-Fi
GND GND
CP8 CP8/SPI_CS
RTS1 RTS1
RXD1 RXD1
GND GND
ETX- NC
ETX+ NC
GND GND
ERX- NC
ERX+ NC
GND GND
RXD2 RXD2
TXD2 TXD2
CP7 CP7/SPI_SCK
+3.3V +3.3V
+3.3V +3.3V
+3.3V +3.3V
CP1 CP1
GND GND
GND GND
2: Functional Description
Pin# xPico Wired
2 GND
4 LED1/LINK
6 LED0/SPEED
8 LED2/ACTIVITY
10 TXD1
12 ETCT
14 LED3/DUPLEX(OUT)
16 CTS1
18 ERCT
20 SYS_LED
22 Reserved
24 Reserved
26 CP2/INT
28 CP3
30 CP4
32 CP5
34 CP6
36 DEFAULT#(IN)
38 EXT_RESET#(IN)
40 GND
xPico Wi-Fi
GND
LED1/WLAN_LED
NC
NC
TXD1
NC
WKUP (IN)
CTS1
NC
SYS_LED
DDP
DDM
CP2/SPI_INT
CP3/MISO
CP4/MOSI
CP5
CP6
DEFAULT#(IN)
EXT_RESET#(IN)
GND
15