Harman Kardon AVR 130 Service Manual page 78

MB90482
Pin No.
Pin name
LQFP* 1 QFP* 2
P43, P44
19 21
20 22
A11, A12
P45
22 24
A13
P46, P47
23 25
A14, A15
24 26
OUT4/OUT5
P50
68 70
ALE
P51
69 71
P52
70 72
WRL
P53
71 73
WRH
P54
72 74
HRQ
P55
73 75
HAK
Circuit
type
This is a general purpose I/O port.
F
In non-multiplex mode, this pin functions as an external
(CMOS)
address pin.
This is a general purpose I/O port.
4
F*
In non-multiplex mode, this pin functions as an external
(CMOS)
address pin.
This is a general purpose I/O port.
F In non-multiplex mode, this pin functions as an external
(CMOS) address pin.
Output compare event output pins.
This is a general purpose I/O port. In external bus mode, this pin
functions as the ALE pin.
D
(CMOS)
In external bus mode, this pin functions as the address load
enable (ALE) signal pin.
This is a general purpose I/O port. In external bus mode, this pin
functions as the RD pin.
D
(CMOS)
In external bus mode, this pin functions as the read strobe output
RD
(RD) signal pin.
This is a general purpose I/O port. In external bus mode, when
the WRE pin in the EPCR register is set to "1", this pin functions
as the WRL pin.
D
(CMOS)
In external bus mode, this pin functions as the lower data write
strobe output (WRL) pin. When the WRE bit in the EPCR regis-
ter 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 with
16-bit bus width, when the WRE bit in the EPCR register is set to
"1", this pin functions as the WRH pin.
D
In external bus mode with 16-bit bus width, this pin functions as
(CMOS)
the upper data write strobe output (WRH) pin. When the WRE 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 HDE bit in the EPCR register is set to "1", this pin functions
as the HRQ pin.
D
(CMOS)
In external bus mode, this pin functions as the hold request input
(HRQ) pin. When the HDE 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 HDE bit in the EPCR register is set to "1", this pin functions
as the HAK pin.
D
(CMOS)
In external bus mode, this pin functions as the hold acknowledge
(HAK) pin. When the HDE bit in the EPCR register is set to "0",
this pin functions as a general purpose I/O port.
Function
(Continued)