Rainbow-electronics ATmega161L Manual do Utilizador descarregar pdf (Página 103)

103

ATmega161(L)

1228C–AVR–08/02

Figure 66. Port D Schematic Diagram (Pins PD2 and PD3)

Figure 67. Port D Schematic Diagram (Pin PD4)

WP:

WD:

RL:

RP:

RD:

n:

m:

WRITE PORTD

WRITE DDRD

READ PORTD LATCH

READ PORTD PIN

READ DDRD

2, 3

0, 1

DA

TA BUS

D

D

Q

Q

RESET

RESET

C

C

WD

WP

RD

MOS

PULL-

UP

PD4

R

R

WP:

WD:

RL:

RP:

RD:

AS2:

WRITE PORTD

WRITE DDRD

READ PORTD LATCH

READ PORTD PIN

READ DDRD

ASYNCH SELECT T/C2

DDD4

PORTD4

RL

RP

AS2

T/C2 OSC

AMP INPUT

1 2 ... 98 99 100 101 102 103 104 105 106 107 108 ... 158 159

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