Avnet UltraZed Series Stromlaufplan - Seite 15

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1
A
(UART0_RXD)
10[2C]
MIO_34
(UART0_TXD)
B
10[3C]
MIO_35
(UART1_RXD)
10[3C]
MIO_33
(UART1_TXD)
10[2C]
MIO_32
C
User's Note:
TXD and RXD are swizzled
on this interface to create
null modem connections.
D
1
2
+3.3V
TP2
TP3
R147
240
TP4
D21
+3.3V
+USB_VDD
On:
R149
TP5
Suspended
10.00K
R150
TP6
Q13
10.00K
BSS138-7-F
+3.3V
+USB_VDD
R152
10.00K
R153
TP7
Q14
10.00K
TP8
BSS138-7-F
TP9
TP10
+3.3V
+USB_VDD
C148
R155
GND
4.7uF
10.00K
R156
DNP
Q15
10.00K
BSS138-7-F
+3.3V
+3.3V
+USB_VDD
R158
R159
240
10.00K
R160
Q16
10.00K
BSS138-7-F
2
3
4
UARTS & FAN
DUAL USB UART
U20
22
25
GPIO.2_SCI / DSR_SCI
PAD
23
C143
GPIO.1_SCI / DTR_SCI
2.2uF
24
5
GPIO.0_SCI / DCD_SCI
VIO
R148
17
SUSPEND / RI_ECI
4.99K
18
9
CTS_SCI
RST
19
RTS_SCI
21
4
USB_UART_N
TXD_SCI
D-
20
RXD_SCI
3
USB_UART_P
D+
13
TXD_ECI
R151
12
8
RXD_ECI
VBUS
10
CTS_ECI
11
RTS_ECI
14
2
GPIO.1_ECI / DSR_ECI
GND
GND
15
GPIO.0_ECI / DTR_ECI
+USB_VDD
16
6
NC / DCD_ECI / VPP
VDD
1
7
SUSPEND / RI_SCI
REGIN
CP2105-F01-GMR
D23
On:
Suspended

FAN HEADER

GND
+VIN
C149
DNP
FB6
0.1uF
JP5
+5.0V
DNP
FB7
3
2
1
C150
0.1uF
22292031
GND
GND
3
4
5
GND
C144
0.1uF
+USB_VDD
C145
GND
0.1uF
100
C146
C147
4.7uF
0.1uF
D22
CDSOT23-SR208
GND
GND
3
4
I/O2
I/O3
2
5
REF+
REF-
1
6
I/O1
I/O4
Project Name:
UltraZed IO Carrier Card
Doc Num:
SCH-US1CAR
Sheet Title:
15 - DUAL UART.SchDoc
5
6
Layout Note:
USB DP & DN signals
routed 90 ohm differentially
45 ohm single ended.
J11
475890001
USB_VBUS_UART
1
USB5V0
2
D-
3
D+
4
ID
PWR
5
i
GND
S1
S1
S2
S2
S3
R154
S3
GND
S4
DNP
0
S4
R157
0
GND
SH_GND6
Avnet Engineering Services
PCB Rev:
BOM:
Variant:
1
01
02
Date:
Time:
11/9/2016
1:51:55 PM
Size:
Sheet:
B
15
17
of
6
A
B
C
D