Schematic diagram of the wlan shield, Figure 44. schematic diagram of the wlan shield – Zilog ZUSBOPTS User Manual
Page 58
UM025603-0814
Schematic Diagrams
Zilog Educational Shields
User Manual
51
Figure 44 shows a schematic diagram of the ZED WLAN Shield.
Figure 44. Schematic Diagram of the WLAN Shield
3.3V
3.3V
PD4
PD5
PD6
PD3
3.3V
.1uF
C1
PE7
PE6
10K
R12
3.3V
AssocStat
TCP
ConStat
PE5
GRN
LED2
R3
1.8K
10K
R2
PG3
SLEEP
RED
LED4
YEL
LED3
WiFi
A1
1
A
P
0
A
P
3
A
P
2
A
P
5
A
P
4
A
P
7
A
P
6
A
P
1
B
P
0
B
P
3
B
P
2
B
P
5
B
P
4
B
P
7
B
P
6
B
P
PC1
3
C
P
2
C
P
5
C
P
4
C
P
7
C
P
6
C
P
1
D
P
0
D
P
3
D
P
2
D
P
5
D
P
4
D
P
7
D
P
6
D
P
1
E
P
0
E
P
3
E
P
2
E
P
5
E
P
4
E
P
7
E
P
6
E
P
VREF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
J1
2x15x2mm
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
J2
2x15x2mm
3.3V
VMAIN
PH0
PB5
PB6
PB7
BLU
LED1
3.3V
POWER
TP1
GND
R7
2.49K
3.0K
R1
PC0
TP3
3.3V
TP4
VMAIN
KEY
GND
1
NC
2
NC
3
GPIO9
4
GPIO8
5
GPIO7
6
GPIO6
7
GPIO5
8
GPIO4
9
VDD_3.3V
10
GPIO3
11
GPIO2
12
GPIO1
13
GND
14
N/C
15
N/C
16
N/C
17
N/C
18
N/C
19
GND
20
GND
21
GND
22
GND
23
ANT
24
GND
25
GND
26
GND
27
GND
28
SENSOR0
29
SENSOR1
30
SENSOR2
31
SENSOR3
32
SENSOR_POWER
33
VDD_3.3V_REF
34
SENSOR4
35
SENSOR5
36
SENSOR6
37
SENSOR7
38
GND
39
RESET
40
FORCE_AWAKE
41
GPIO14
42
UART_RTS
43
UART_CTS
44
UART_RX
45
UART_TX
46
GND
47
SREG_3V3_CT
RL
48
VDD_BATT
49
RN-171
U1
TP2
GND
Stacking Symbol
3.3V
3.3V
VMAIN
VMAIN
I/O Lines Used
PB5
PB6
PB7
PD3
PD4
PD5
PD6
PE6
PE7
PE5
PG3
PH0
PG3
7
F
P
6
F
P
1
H
P
0
H
P
3
H
P
2
H
P
RTS
CTS
RX
TX
470
R5
1.5K
R6
GRN
LE
D
7
YE
L
LE
D
5
RED
LED6
2K
R9
2K
R10
PA0
PA1
PA2
PA0
PA1
PA2
100K
R4
100K
R8
3.3V
470
R11
5V
5V
TP5
5V