Harman Kardon AVR235 Service Manual page 93

AVR235
Pin No.
LQFP* 1 QFP* 2
74 76
76 78
36 to 39 38 to 41
41 to 44 43 to 46
25 27
26 28
27 29
28 30
29 31
30 32
31 33
32 34
45, 47,
46 48
50 to 55 52 to 57
IRQ2 to IRQ7
Circuit
Pin name
type
P56
D
(CMOS)
RDY
P57
D
(CMOS)
CLK
P60 to P63
H
(CMOS)
AN0 to AN3
P64 to P67
H
(CMOS)
AN4 to AN7
P70
G
(CMOS/H)
SIN0
P71
F
(CMOS)
SOT0
P72
G
(CMOS/H)
SCK0
P73
G
(CMOS/H)
TIN0
P74
F
(CMOS)
TOT0
F* 4
P75
(CMOS)
F* 5
P76
(CMOS)
F* 5
P77
(CMOS)
P80, P81
E
(CMOS/H)
IRQ0, IRQ1
P82 to P87
E
(CMOS/H)
This is a general purpose I/O port. In external bus mode, when
the RYE bit in the EPCR register is set to "1", this pin functions
as the RDY pin.
In external bus mode, this pin functions as the external ready
(RDY) input pin. When the RYE bit in the EPCR register is set to
"0", this pin functions as a general purpose I/O port.
This is a general purpose I/O port. In external bus mode, when
the CKE bit in the EPCR register is set to "1", this pin functions
as the CLK pin.
In external bus mode, this pin functions as the machine cycle
clock (CLK) output pin. When the CKE bit in the EPCR register is
set to "0", this pin functions as a general purpose I/O port.
These are general purpose I/O ports.
These are the analog input pins.
These are general purpose I/O ports.
These are the analog input pins.
This is a general purpose I/O port.
This is the UART data input pin.
This is a general purpose I/O port.
This is the UART data output pin.
This is a general purpose I/O port.
This is the UART clock I/O pin.
This is a general purpose I/O port.
This is the 16-bit reload timer event input pin.
This is a general purpose I/O port.
This is the 16-bit reload timer output pin.
This is a general purpose I/O port.
This is a general purpose I/O port.
This is a general purpose I/O port.
These are general purpose I/O ports.
External interrupt input pins.
These are general purpose I/O ports.
External interrupt input pins.
93
harman/kardon
MB90482
Function
(Continued)