Harman Kardon AVR 3550 Service Manual ▷ View online
LQFP
QFP
Pin Name
Circuit Type
Function
P30
General-purpose I/O ports
A00
In the external bus mode, the pin functions as an external address pin.
7
9
AIN0
E
(CMOS/H)
The pin is an 8-/16-bit up-and-down timer input pin (ch0).
P31
General-purpose I/O port
A01
In the external bus mode, the pin functions as an external address pin.
8
10
BIN1
E
(CMOS/H)
The pin is the 8-/16-bit up-and-down timer input pin (ch0).
P32
General-purpose I/O port
A02
In the external bus mode, the pin functions as an external address pin.
10
12
ZIN0
E
(CMOS/H)
The pin is an 8-/16-bit up-and-down timer input pin (ch0).
P33
General-purpose I/O port
A03
In the external bus mode, the pin functions as an external address pin.
11
13
AIN1
E
(CMOS/H)
The pin is an 8-/16-bit up-and-down timer input pin (ch1).
P34
General-purpose I/O port
A04
In the external bus mode, the pin functions as an external address pin.
12
14
BIN1
E
(CMOS/H)
The pin is an 8-/16-bit up-and-down timer input pin (ch1).
P35
General-purpose I/O port
A05
In the external bus mode, the pin functions as an external address pin.
13
15
ZIN1
E
(CMOS/H)
The pin is an 8-/16-bit up-and-down timer input pin (ch1).
P36, P37
General-purpose I/O port
A06, A07
In the external bus mode, the pins function as external address pins.
14 and 15
16 and
17
PWC0,
PWC1
E
(CMOS/H)
This pin functions as PWC input pin.
P40
General-purpose I/O port
A08
In the external bus mode, the pin functions as an external address pin.
16
18
SIN2
G
(CMOS/H)
Simple serial I/O input pin
P41
General-purpose I/O port
A09
In the external bus mode, the pin functions as an external address pin.
17
19
SOT2
F
(CMOS/H)
SCI Output pin
P42
General-purpose I/O port
A10
In the external bus mode, the pin functions as an external address pin.
18
20
SCK2
G
(CMOS)
SCI Clock I/O pin
P43, P44
General-purpose I/O port
A11, A12
In the external bus mode, the pins function as external address pins.
19 and 20
21 and
22
MT00,
MT01
F
(CMOS)
µ
PG Output pins
P45
General-purpose I/O port
A13
In the external bus mode, the pin functions as an external address pin.
22
24
EXTC
G
(CMOS)
µ
PG Input pin
P46,P47
General-purpose I/O ports
A14, A15
In the external bus mode, the pins function as external address pins.
23 and 24
25 and
26
OUT4/
OUT5
D
(CMOS)
The pins are captured as output-compare event output pins.
LQFP
QFP
Pin Name
Circuit Type
Function
P50
General-purpose I/O port
In the external bus mode, the pin functions as ALE pin.
In the external bus mode, the pin functions as ALE pin.
68
70
ALE
D
(CMOS)
In the external bus mode, the pin functions as an address capture
enable signal (ALE) pin.
enable signal (ALE) pin.
P51
General-purpose I/O port
In the external bus mode, the pin functions as the RDX pin.
In the external bus mode, the pin functions as the RDX pin.
69
71
RDX
D
(CMOS)
When the external bus mode is enabled, the pin functions as the read
strobe output (RDX) pin.
strobe output (RDX) pin.
P52
General-purpose I/O port
When the external bus mode is enabled and the WRE bit of the EPCR
register is 1, the pin functions as the WRLX pin
When the external bus mode is enabled and the WRE bit of the EPCR
register is 1, the pin functions as the WRLX pin
70
72
WRLX
D
(CMOS)
When the external bus mode is enabled, the pin functions as the lower-
order side data write strobe output (WRLX) pin. When the WRE bit of
the EPCR register is 0, the pin functions as a general-purpose I/O port.
order side data write strobe output (WRLX) pin. When the WRE bit of
the EPCR register is 0, the pin functions as a general-purpose I/O port.
P53
General-purpose I/O port
When the external bus mode is enabled (the bus is 16-bits long) and
the WRE bit of the EPCR register is 1, the pin functions as the WRHX
pin.
When the external bus mode is enabled (the bus is 16-bits long) and
the WRE bit of the EPCR register is 1, the pin functions as the WRHX
pin.
71
73
WRHX
D
(CMOS)
When the external bus mode is enabled (the bus is 16-bits long), the
pin functions as the higher-order side data write strobe output (WRHX)
pin. When the WRE bit of the EPCR register is 0, the pin functions as
a general-purpose I/O port.
pin functions as the higher-order side data write strobe output (WRHX)
pin. When the WRE bit of the EPCR register is 0, the pin functions as
a general-purpose I/O port.
P54
General-purpose I/O port
When the external bus mode is enabled and the HDE bit of the EPCR
register is 1, the pin functions as the HRQ pin.
When the external bus mode is enabled and the HDE bit of the EPCR
register is 1, the pin functions as the HRQ pin.
72
74
HRQ
D
(CMOS)
When the external bus mode is enabled, the pin functions as the hold
request input (HRQ) pin. When the HDE bit of the EPCR register is 0,
the pin functions as a general-purpose I/O port.
request input (HRQ) pin. When the HDE bit of the EPCR register is 0,
the pin functions as a general-purpose I/O port.
P55
General-purpose I/O port
When the external bus mode is enabled and the HDE bit of the EPCR
register is 1, the pin functions as the HAKX pin.
When the external bus mode is enabled and the HDE bit of the EPCR
register is 1, the pin functions as the HAKX pin.
73
75
HAKX
D
(CMOS)
When the external bus mode is enabled, the pin functions as the hold
acknowledge output (HAKX) pin. When the HDE bit of the EPCR
register is 0, the pin functions as a general-purpose I/O port.
acknowledge output (HAKX) pin. When the HDE bit of the EPCR
register is 0, the pin functions as a general-purpose I/O port.
P56
General-purpose I/O port When the external bus mode is enabled and
the RYE bit of the EPCR register is 1, the pin functions as the RDY pin.
the RYE bit of the EPCR register is 1, the pin functions as the RDY pin.
74
76
RDY
D
(CMOS)
When the external bus mode is enabled, the pin functions as the
external ready input (RDY) pin. When the RYE bit of the EPCR
register is 0, the pin functions as a general-purpose I/O port.
external ready input (RDY) pin. When the RYE bit of the EPCR
register is 0, the pin functions as a general-purpose I/O port.
P57
General-purpose I/O port When the external bus mode is enabled and
the CKE bit of the EPCR register is 1, the pin functions as the CLK pin.
the CKE bit of the EPCR register is 1, the pin functions as the CLK pin.
76
78
CLK
D
(CMOS)
When the external bus mode is enabled, the pin functions as the
machine cycle clock output (CLK) pin. When the CKE bit of the EPCR
register is 0, the pin functions as a general-purpose I/O port.
machine cycle clock output (CLK) pin. When the CKE bit of the EPCR
register is 0, the pin functions as a general-purpose I/O port.
P60 to P63
General-purpose I/O port
36 to 39
38 to 41
AN0 to
AN3
H
(CMOS)
The pins function as analog input pins.
P64 to P67
General-purpose I/O port
41 to 44
43 to 46
AN4 to
AN7
H
(CMOS)
The pins function as analog input pins.
P70
General-purpose I/O port
25
27
SIN0
G
(CMOS/H)
The pin functions as an UART data input pin.
LQFP
QFP
Pin Name
Circuit Type
Function
P71
General-purpose I/O port
26
28
SOT0
F
(CMOS)
The pin functions as an UART data output pin.
P72
General-purpose I/O port
27
29
SCK0
G
(CMOS/H)
The pin functions as an UART clock I/O pin.
P73
General-purpose I/O port
28
30
TIN0
G
(CMOS/H)
The pin functions as the event input pin of the 16-bit reload timer.
P74
General-purpose I/O port
29
31
TOT0
F
(CMOS/H)
The pin functions as the output pin of the 16-bit reload timer.
P75
General-purpose I/O port
30
32
PWC2
G
(CMOS/H)
The pin functions as a PWC input pin.
P76
General-purpose I/O port
31
33
SCL
I
(NMOS/H)
The pin functions as the I
2
C interface data I/O pin.
While the I
2
C interface is operating, set the port output to Hi-Z.
P77
General-purpose I/O port
32
34
SDA
I
(NMOS/H)
The pin functions as the I
2
C interface clock I/O pin.
While the I
2
C interface is operating, set the port output to Hi-Z.
P80, P81
General-purpose I/O port
45
46
46
47
48
48
IRQ0, IRQ1
E
(CMOS/H)
The pins function as external interrupt input pins.
P82 to P87
General-purpose I/O port
50 to 55
52 to 57
IRQ2 to IRQ7
E
(CMOS/H)
The pins function as external interrupt input pins.
P90
General-purpose I/O port
SIN1
The pin functions as the simple serial I/O data input pin.
56
58
CS0
E
(CMOS/H)
Chip select 0
P91
General-purpose I/O port
SOT1
The pin functions as the I/O clock I/O pins.
57
59
CS1
D
(CMOS)
Chip Select 1
P92
General-purpose I/O port
SCK1
The pin functions as the SCI clock I/O pin.
58
60
CS2
E
(CMOS/H)
Chip Select 2
P93
General-purpose I/O port
FRCK
The pin functions as the external clock input pin while the free-running
timer is in use.
timer is in use.
ADTG
The pin functions as the external trigger input pin while the A/D
converter is in use.
converter is in use.
59
61
CS3
E
(CMOS/H)
Chip Select 3
P94
General-purpose I/O port
60
62
PPG4
D
(CMOS/H)
The pin functions as a PPG timer output pin.
P95
General-purpose I/O port
61
63
PPG5
D
(CMOS)
The pin functions as a PPG timer output pin.
P96
General-purpose I/O port
62
64
IN0
E
(CMOS/H)
The pin is captured as the input capture ch0 trigger input pin.
P97
General-purpose I/O port
63
65
IN1
E
(CMOS/H)
The pin is captured as the input capture ch1 trigger input pin.
PA0 to PA3
General-purpose I/O port
64 to 67
66 to 69
OUT0 to OUT3
D
(CMOS)
The pins are captured as the output-compare event output pins.
33
35
AVCC
-
Pin for power supply to A/D converter
34
36
AVRH
-
Pin for external reference power supply to A/D converter
35
37
AVSS
-
Pin for power supply to A/D converter
47 to 49
49 to 51
MD0 to MD2
J
(CMOS/H)
Input pins for selecting operation mode
82
84
VCC3
-
Pin for power supply 3.3 V
±
0.3 V (VCC3)
21
23
VCC5
-
Amphibious pin for power supply 3.3 V
±
0.3 V/5.0 V
±
0.5 (VCC5)
9
40
79
79
11
42
81
42
81
VSS
-
Pins for input for power (GND)
NJM4556AM : IC86
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