Lantronix XPort, Руководство по интеграции

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Development Kit
XPort™ Integration Guide 21
Board Layout
Component Identification
Figure 3-8. Board Layout
FP1
XPort Solder Pads
Se
le
c
t
Fu
n
c
tio
n
Se
lt
T
e
st
XP
o
rt
P
in
6
to
U
2
C
T
S
XP
o
rt
P
in
7
to
U
2
D
C
D
XP
o
rt
P
in
8
to
U
2
D
T
R
XP
o
rt
P
in
8
to
U2
RT
S
NO
X
P
o
rt
Pi
n
8
to U
2
L
o
op
-b
ac
k
Se
lf
T
e
st
SW on of
f
ON
1
OF
F
2
OF
F
3
OF
F
4
ON
4
OF
F
5
ON
6
XP
o
rt
S
o
c
k
e
t
SC1
LANTRONIX XPORT TEST BOARD
TP1 TP2
TP3 TP4
TDI
TCK
TMS
TDO
Cha
s
si
s
Gr
o
u
n
d
Ch
a
ss
is
Gr
o
u
n
d
TP
6
TP
5
JP
4
TP
12
Re
s
e
t
TP11
TP13
TP8
3.3V
TP9
Signal Ground
Configurable Port Interface
JP
5
U1
D4 D6
D5
RS232
RXD TXD
Valid Active Active
D7
D9
D8
CP1 CP2 CP3
PA
D
6
PA
D
7
PA
D
8
PLD
Control
PAD4
PAD3
U5
Slow
Timer
U4
SW
2
SW
1
PAD1
PA
D
2
PA
D
10
PA
D
9
Mode
1 6
RS232 Transceiver
U2
P1
1
RS
2
3
2
t
o
DT
E
De
v
ic
e
TP
7
Ch
a
s
si
s
Gr
o
u
n
d
D2
Reset
XPort
Power
5VDC In
J1
XPort D-Out
XPort D-In
JP3
R31
Chassis Ground
Table 3-6. Board Components
Label Function Label Function
P1 RS-232 interface. DB9F connector TP1 NA
J1 +5VDC input connector TP2 NA
SC1 NA TP3 NA
SW1 Mode switch TP4 NA
SW2 Reset switch TP5 Chassis ground
D2 XPort power (red) (LED) TP6 Chassis ground
D4 RS-232 valid (green) (LED) TP7 Chassis ground
D5 RXD active (green) (LED) TP8 XPort 3.3VDC (3V3)
D6 TXD active (green) (LED) TP9 Signal ground
D7 CP1- XPort pin 6 goes low (LED)
D8 CP2- XPort pin 7 goes low (LED) TP11 XPort pin 5, data in
D9 CP3- XPort pin 8 goes low (LED) TP12 XPort pin 3, reset
JP3 Programming for PLD TP13 XPort pin 4, data out
JP4 Configurable pins interface header connector FP1 XPort solder pads
JP5
Factory test – no connector