Figure 4. atmel avr risc microcontroller, Cdb8427 – Cirrus Logic CDB8427 User Manual
Page 10
CDB8427
10
D1
D3
D5
D3
D7
D4
D[0-7]
D5
D7
D0
D4
D4
D2
D7
D1
D2
D5
D0
D6
D6
D2
D6
D0
D1
D3
A[8-14]
A14
A13
A12
A11
A10
A9
A8
A8
A9
A11
A10
A13
A14
A12
SUP1
SUP2
SUP3
SUP4
SUP5
SUP0
APMS
SFMT0
SFMT1
H/S
MUTE
S/AES
CEN
MRST
TCBLD
/PGM
CDOUT
CDIN
CCLK
/CS
/RESET
INT
VD
VD
VD
VD
VD
VD
VD
VD
VD
C31
.1uF
R32
1
K
U10
6.000MHz
1
7
8
14
NC
GND
Out
VD
D
6
1N4148
1
2
C34
.1uF
S6
SW DIP-8
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
D
7
1N4148
1
2
R33
680
TP3
1
TP2
9
C33
1000pF
R34
680
C36
.1uF
C35
.1uF
R35
1
0
0
U9
DS232
11
14
13
12
1
3
10
7
8
9
4
5
2
6
15
16
T
1
I
N
T1 OUT
R
1
I
N
R1 OUT
C1+
C1-
T
2
I
N
T2 OUT
R
2
I
N
R2 OUT
C2+
C2-
V+
V-
GND
VD
C37
.1uF
D
9
LED_R
2
1
D
8
LED_G
2
1
C30
.1uF
D10
LED_G
2
1
R31
2 Ohms
P1
CONNECTOR DB9
5 9
4 8
3 7 2
6 1
U
5
74HC574
2
3
4
5
6
7
8
9
11
1
19
18
17
16
15
14
13
12
D1
D2
D3
D4
D5
D6
D7
D8
CLK
OC
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
C38
.1uF
U
6
HM628512
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
D0
D1
D2
D3
D4
D5
D6
D7
/CS
A10
/OE
A11
A9
A8
A13
/WE
A17
A15
J10
HDR6X2
1
3
2
4
5
6
7
8
9
10
11
12
TP32
C39
.1uF
U11
74HC4053
12
13
2
1
5
3
6
11
10
9
14
15
4
X0
X1
Y0
Y1
Z0
Z1
INH
A
B
C
X
Y
Z
RN1
8x 47K
2 3
4 5
6
1
7 8
9
+
C24
1uF 50V
C25
.1uF
L4
FERRITE BEAD
+
C23
1uF 50V
C26
.1uF
R37
1
0
0
C27
.1uF
TP30
U8
ATmega103
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
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49 50 51
52 53
54 55 56
57 58
59 60 61
62 63
64
/PEN
PE0/RXD
PE1/TXD
PE2
PE3
PE4
PE5
PE6
PE7
PB0/CS
PB1/CCLK
PB2/CDIN
PB3/CDOUT
PB4
PB5
PB6
PB7
TOSC2
TOSC1
/RST
VD
GND
XTAL2
XTAL1
PD0/INT0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
/WR
/RD
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
ALE
PA7(AD7)
PA6(AD6)
PA5(AD5)
PA4(AD4)
PA3(AD3)
PA2(AD2) PA1(AD1) PA0(AD0)
VD GND
PF7(ADC7) PF6(ADC6) PF5(ADC5)
PF4(ADC4) PF3(ADC3)
PF2(ADC2) PF1(ADC1) PF0(ADC0)
AREF AGND
AVCC
C28
.1uF
R36
1
0
0
C29
.1uF
+
C32
1uF 50V
U2D
74VHC125
12
11
13
J9
HDR5X2
1
3
2
4
5
6
7
8
9
10
U
7
74HC573
2
3
4
5
6
7
8
9
11
1
19
18
17
16
15
14
13
12
D1
D2
D3
D4
D5
D6
D7
D8
C
OC
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
R30
825
D5
LED_G
2
1
Fi
g
u
re 4
.
Atm
el AVR RIS
C
M
icro
co
ntro
ll
er