Datasheet

70
ATmega162/V
2513G–AVR–03/05
Notes: 1. ADA is short for ADdress Active and represents the time when address is output. See
“External Memory Interface” on page 24.
2. PCINTn is Pin Change Interrupt Enable bit n.
3. PCINTn is Pin Change Interrupt input n.
Notes: 1. PCINT is Pin Change Interrupt Enable bit n.
2. PCINT is Pin Change Interrupt input n.
Table 30. Overriding Signals for Alternate Functions in PA7..PA4
Signal
Name
PA7/AD7/
PCINT7 PA6/AD6/PCINT6 PA5/AD5/PCINT5 PA4/AD4/PCINT4
PUOE SRE SRE SRE SRE
PUOV ~(WR + ADA
(1)
) •
PORTA7
~(WR + ADA) •
PORTA6
~(WR + ADA) •
PORTA5
~(WR + ADA) •
PORTA4
DDOE SRE SRE SRE SRE
DDOV WR
+ ADA WR + ADA WR + ADA WR + ADA
PVOE SRE SRE SRE SRE
PVOV if (ADA) then
A7
else
D7 OUTPUT
• WR
if (ADA) then
A6
else
D6 OUTPUT
• WR
if (ADA) then
A5
else
D5 OUTPUT
• WR
if (ADA) then
A4
else
D4 OUTPUT
• WR
DIEOE
(2
)
PCIE0 • PCINT7 PCIE0 • PCINT6 PCIE0 • PCINT5 PCIE0 • PCINT4
DIEOV1111
DI
(3)
D7 INPUT/
PCINT7
D6 INPUT/
PCINT6
D5 INPUT/
PCINT5
D4 INPUT/
PCINT4
AIO––––
Table 31. Overriding Signals for Alternate Functions in PA3..PA0
Signal
Name
PA3/AD3/
PCINT3
PA2/AD2/
PCINT2
PA1/AD1/
PCINT1
PA0/AD0/
PCINT0
PUOE SRE SRE SRE SRE
PUOV ~(WR + ADA) •
PORTA3
~(WR + ADA) •
PORTA2
~(WR + ADA) •
PORTA1
~(WR + ADA) •
PORTA0
DDOE SRE SRE SRE SRE
DDOV WR
+ ADA WR + ADA WR + ADA WR + ADA
PVOE SRE SRE SRE SRE
PVOV if (ADA) then
A3
else
D3 OUTPUT
• WR
if (ADA) then
A2
else
D2 OUTPUT
• WR
if (ADA) then
A1
else
D1 OUTPUT
• WR
if (ADA) then
A0
else
D0 OUTPUT
• WR
DIEOE
(1)
PCIE0 • PCINT3 PCIE0 • PCINT2 PCIE0 • PCINT1 PCIE0 • PCINT0
DIEOV 1 1 1 1
DI
(2)
D3 INPUT
/PCINT3
D2 INPUT
/PCINT2
D1 INPUT
/PCINT1
D0 INPUT
/PCINT0
AIO – – – –