2: Functional Description
xPico® Embedded Device Server Integration Guide
16
Table 2-3 xPico (wired) PCB Interface Signals
Signal Name
xPico
Pin #
Primary Function
Reset
State
Internal
Pull-up
Driver
Strength
GND 1
Signal
Ground
GND 2
Signal
Ground
CP8
3
Configurable I/O
Input
Active 56K
to 122K
4mA
LED1/LINK
4
Ethernet Link LED, active low
Output
8mA
RTS1
5
Serial ready to send/ serial
transmit enable
Output
2mA
LED0/SPEED 6
Ethernet
speed LED, active
low
Output
8mA
RXD1
7
Serial receive data input 1
Input
Active 56K
to 122K
LED2/ACTIVITY
8
Ethernet Activity LED, active
low
Output
8mA
GND 9
Signal
Ground
TXD1
10
Serial transmit data output 1
Output
2mA
TX-
11
Ethernet transmit differential
(neg)
Output
TCT
12
Ethernet transmit center tap
TX+
13
Ethernet transmit differential
(pos)
Output
LED3/DUPLEX
14
Ethernet Duplex LED, active
low
Output
8mA
GND 15
Signal
Ground
CTS1
16
Serial Clear to Send
Input
Active 56K
to 122K
RX-
17
Ethernet receive differential
(neg)
Input
RCT
18
Ethernet receive center tap
RX+
19
Ethernet receive differential
(pos)
Input
SYSTEM_LED
20
System status LED, active
high
Input Active
56K
to 122K
4mA
GND 21
Signal
Ground
Reserved
22
Reserved for future use. Do
not connect.
RXD2
23
Serial receive data input 2
Input
Active 56K
to 122K
Reserved
24
Reserved for future use. Do
not connect.
TXD2
25
Serial transmit data output 2
Output
2mA
CP2/INT 26
Configurable
I/O-External
interrupt input
Input Active
56K
to 122K
4mA
