Development Kit
WiPort™ Integration Guide
26
V
C
C
2
FAST
10
DI/T1IN
16
DE485/T2IN
15
RS485/RS232#
11
Z(B)/T1OUT
5
Y(A)/T2OUT
6
G
N
D
4
B/R1IN
14
A/R2IN
13
R1OUT
7
RO/R2OUT
8
C1-
3
C1+
1
HDPX
12
SHDN#
9
V+
20
V-
17
C2+
19
C2-
18
RSXXX
TTL
U1
MAX3160EAP
5
9
4
8
3
7
2
6
1
1
0
11
CON1
DB9-MALE
DCD1_232
DTR1_232
CTS1_B
TXD1_B
RTS1_B
RXD1_B
1 2 3 4
5
6
7
8
TS1
ITA25B1
TXD0_232
RXD0_232
CTS0_232
DCD0_232
3V3
G
N
D
1
8
V
C
C
1
9
R1IN
16
R2IN
9
T2IN
12
T1IN
13
C1+
2
C1-
4
V-
7
V+
3
R1OUT
15
R2OUT
10
T1OUT
17
T2OUT
8
C2+
5
C2-
6
EN-
1
SHUTDOWN-
20
ONLINE-
14
STATUS-
11
RS232
U3
SP3223EUEA
G
N
D
1
8
V
C
C
1
9
R1IN
16
R2IN
9
T2IN
12
T1IN
13
C1+
2
C1-
4
V-
7
V+
3
R1OUT
15
R2OUT
10
T1OUT
17
T2OUT
8
C2+
5
C2-
6
EN-
1
SHUTDOWN-
20
ONLINE-
14
STATUS-
11
RS232
U2
SP3223EUEA
3V3
RTS1_232/TX+485
RXD1_232/RX+485
TXD1_232/TX-485
DCD1_232
DTR1_232
CTS1_232/RX-485
1
2
C20
0.1uF
1
2
C13
0.1uF
1
2
C18
0.1uF
1
2
C21
0.1uF
1
2
C30
0.1uF
1
2
C19
0.1uF
1
2
C26 0.1uF
1
2
C31
0.1uF
1
2
C11 0.1uF
1
2
C16
0.1uF
1
2
C17 0.1uF
1
2
C14
0.1uF
1
2
C15
0.1uF
1
2
C27
0.1uF
1
2
C28
0.1uF
3V3
3V3
DNP = Do Not Place
Place R4, not R7 to disable slew rate limiting.
Place R7, not R4 to enable slew rate limiting.
1
2
JP3
1
2
JP1
In RS485 mode,
RTS1 is used to
enable the RS485
output driver
R3
10k
1
2
JP2
R8
10k
1
2
JP5
1
2
JP6
1
2
JP4
R5 10k
R6 10k
1
2
C22
.01uF, HV
1
2
C23
.01uF, HV
3V3
3V3
RXD0_B
3V3
DTR0_232
CP2
RXD0_232
RTS0_232
3V3
RTS0_B
CTS0_B
CP3
TXD0_B
TXD0_232
R4
10k
R7
DNP_10k
RS232 PORT 0
RS232 PORT 0/1
RS232/RS485 PORT 1
3V3
CP4
5
9
4
8
3
7
2
6
1
1
0
11
CON2
DB9-MALE
1
2
C12 4.7uF
1
2
C25 4.7uF
3V3
CP1
3V3
CP0
CP10