VAR-320SBC Reference Guide
Copyright © 2008 Variscite
31
6. Connectors
6.1. P1
Pin
num
Signal
Type
Description
GPIO
1
TPI_P
O
Ethernet Twisted Pair Receive Positive
n/a
2
TPO_P
I
Ethernet Twisted Pair Transmit Positive
n/a
3 TPI_N
O
Ethernet
Twisted
Pair Receive Negative
n/a
4
TPO_N
I
Ethernet Twisted Pair Transmit Negative
n/a
5 nSPD_100
O
LED,
Activity
Indicator
n/a
6
nLINK_ACK
O
LED, Speed Indicator
n/a
7 V_BATT
n/a
8
AGND
O
Analog GND for Ethernet magnetics
n/a
9 NC
n/a
10
AGND
O
Analog GND for Ethernet magnetics
n/a
11 NC
n/a
12
AGND
Analog GND for Ethernet magnetics
n/a
13
GPIO0
I/O
General purpose IO pin
0
14 NC
n/a
15
GPIO1
I/O
General purpose IO pin
1
16
ETH_V_1P8V
O
Analog 1.8v for Ethernet magnetics
40
17
GPIO16
I/O
General purpose IO pin
16
18
ETH_V_1P8V
O
Analog 1.8v for Ethernet magnetics
34
19 V_BATT
n/a
20
ETH_V_1P8V
I
Analog 1.8v for Ethernet magnetics
39
21 NC
n/a
22
BT_TXD
O
BT UART TXD
111
23 NC
n/a
24
BT_RXD
I
BT UART RXD
110
25 NC
n/a
26 GND
n/a
27 FFRXD
I FFUART
RXD
41
28
BT_CTS
I
BT UART CTS
112
29 FFTXD
O
FFUART
TXD
42
30
BT_RTS
O
BT UART RTS
109
31 V_BATT
n/a
32 NC
n/a
33 FFDCD
I FFUART
DCD
44
34
VDD_DDR_EXT
O
DDR 1.8V supply for Deep-sleep
37
35
FFDTR
O
DATA TERMINAL READY
47
36
VDD_DDR_EXT
I
DDR 1.8V supply for Deep-sleep
35
37 FFDSR
I FFUART
DSR
45
38 GND
n/a
39
FFCTS
I
FFUART CTS
43
40 N.C.
41 FFRTS
O
FFUART
RTS
48
42
STD_TXD
O
ST UART TXD
107