11
8393CS-MCU Wireless-09/14
ATmega256/128/64RFR2
•
RX/TX Indicator using alternate pin function DIG3/4 at Port G and F
An extended feature set application schematic illustrating the use of the
ATmega256/128/64RFR2 Extended Feature Set, is shown in
Figure 4-2.
Extended Feature Application schematic
8
7
6
5
4
3
2
1
17
18
19
20
21
22
23
24
56
57
58
59
60
61
62
63
A
R
E
F
A
V
S
S
AVSS
RFP
RFN
AVSS
TST
D
V
S
S
D
V
D
D
D
V
D
D
X
T
A
L
2
D
E
V
D
D
D
V
S
S
A
V
D
D
E
V
D
D
A
V
S
S
X
T
A
L
1
41
42
43
44
45
46
47
48
PB0
DVSS
PE0
PB7
CB3
CB4
RSTN
V
DD
XTAL
CX1
CX2
CB1
V
DD
CB2
25
26
27
28
29
30
31
32
16
14
13
12
11
10
9
15
64
54
55
49
50
51
52
53
33
34
35
36
37
38
39
40
RSTON
XTAL
32kHz
CX3
CX4
CLKI
DEVDD
DVSS
DEVDD
P
E
7
D
V
S
S
D
E
V
D
D
P
F
0
PF7
PG0
P
G
5
P
D
0
P
D
7
B
a
lu
n
R
F
-
S
w
it
c
h
ANT0
ANT1
R
F
-
S
w
it
c
h
B1
SW1
SW2
PA
LNA
N1
N2
Pins TST & CLKI
must be connected
Although this example shows all additional hardware features combined, it is possible to
use all features separately or in various combinations.
