Mb90482 - Harman Kardon AVR135 Service Manual

AVR135

MB90482

PIN DESCRIPTIONS (IC72)
Pin No.
Pin name
1 2
LQFP* QFP*
80 82
81 83
78 80
77 79
75 77
P00 to P07
83 to 90 85 to 92
AD00 to AD07
D00 to D07
P10 to P17
93 to
91 to 98
100
AD08 to AD15
D08 to D15
P20 to P23
99,
100, 1 to 4 A16 to A19
1,2
A16 to A19
P24 to P27
A20 to A23
3 to 6 5 to 8
A20 to A23
PPG0 to PPG3
Circuit
type
X0 A Oscillator pin
X1 A Oscillator pin
X0A A 32 kHz oscillator pin
X1A A 32 kHz oscillator pin
RST B 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.)
C
(CMOS) 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.)
C
(CMOS) 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)
E
are set to "0" in multiplex mode, these pins function as address
(CMOS/H)
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
E
high output pins (A20-A23).
(CMOS/H)
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.
Function
83
harman/kardon
(Continued)