Rainbow-electronics ATmega103L Manuel d'utilisateur télécharger pdf (Page 81)

ATmega603/103

81

Figure 58. Port B Schematic Diagram (Pin PB4)

Figure 59. Port B Schematic Diagram (Pins PB5 and PB6)

DATA BUS

D

D

Q

Q

RESET

RESET

C

C

WD

WP

RD

RP

RL

MOS

PULL-

UP

PB4

R

R

WP:

WD:

RL:

RP:

RD:

WRITE PORTB

WRITE DDRB

READ PORTB LATCH

READ PORTB PIN

READ DDRB

DDB4

PORTB4

COMP. MATCH 0

COM01

COM01

OUTPUT

MODE SELECT

DATA BUS

D

D

Q

Q

RESET

RESET

C

C

WD

WP

RD

RP

RL

MOS

PULL-

UP

PBn

R

R

WP:

WD:

RL:

RP:

RD:

n:

X:

WRITE PORTB

WRITE DDRB

READ PORTB LATCH

READ PORTB PIN

READ DDRB

5, 6

A, B

DDBn

PORTBn

COMP. MATCH 1X

COM1X0

COM1X1

OUTPUT

MODE SELECT

1 2 ... 76 77 78 79 80 81 82 83 84 85 86 ... 125 126

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