Harman Kardon AVR340 Service Manual page 153

AVR340
MB90482
PIN DESCRIPTIONS (IC72)
Pin No.
1 2
LQFP* QFP*
80 82
81 83
78 80
77 79
75 77
83 to 90 85 to 92
AD00 to AD07
93 to
91 to 98
100
AD08 to AD15
99,
100, 1 to 4
1,2
3 to 6 5 to 8
Circuit
Pin name
type
X0 A
X1 A
X0A A
X1A A
RST B
P00 to P07
C
(CMOS)
D00 to D07
P10 to P17
C
(CMOS)
D08 to D15
P20 to P23
E
A16 to A19
(CMOS/H)
A16 to A19
P24 to P27
A20 to A23
E
(CMOS/H)
A20 to A23
PPG0 to PPG3
Oscillator pin
Oscillator pin
32 kHz oscillator pin
32 kHz oscillator pin
Reset input pin
This is a general purpose I/O port. A setting in the pull-up
resistance setting register (RDR0) can be used to apply pull-up
resistance (RD00-RD07 = "1") . (Disabled when pin is set for
output.)
In multiplex mode, these pins function as the external address/
data bus low I/O pins.
In non-multiplex mode, these pins function as the external data
bus low output pins.
This is a general purpose I/O port. A setting in the pull-up
resistance setting resister (RDR1) can be used to apply pull-up
resistance (RD10-RD17 = "1") . (Disabled when pin is set for
output.)
In multiplex mode, these pins function as the external address/
data bus high I/O pins.
In non-multiplex mode, these pins function as the external data
bus high output pins.
This is a general purpose I/O port. When the bits of external
address output control register (HACR) are set to "1" in external
bus mode, these pins function as general purpose I/O ports.
When the bits of external address output control register (HACR)
are set to "0" in multiplex mode, these pins function as address
high output pins (A16-A19).
When the bits of external address output control register (HACR)
are set to "0" in non-multiplex mode, these pins function as
address high output pins (A16-A19).
This is a general purpose I/O port. When the bits of external
address output control register (HACR) are set to "1" in external
bus mode, these pins function as general purpose I/O ports.
When the bits of external address output control register (HACR)
are set to "0" in multiplex mode, these pins function as address
high output pins (A20-A23).
When the bits of external address output control register (HACR)
are set to "0" in non-multiplex mode, these pins function as
address high output pins (A20-A23).
PPG timer output pins.
153
harman/kardon
Function
(Continued)