Rainbow Electronics AT90LS4433 - Manual (Page 84)

84
AT90S/LS4433
1042G–AVR–09/02
Figure 60. Port D Schematic Diagram (Pins PD4 and PD5)
Figure 61. Port D Schematic Diagram (Pins PD6 and PD7)
WP:
WD:
RL:
RP:
RD:
n: WRITE PORTD
WRITE DDRD
READ PORTD LATCH
READ PORTD PIN
READ DDRD
4, 5
PDn
PORTBn
DDDn
2
DA
T
A
BUS
D
D
Q
Q
RESET
RESET
C
C
WD
WP
RD
MOS
PULL-
UP
PDn
AINm
TO COMPARATOR
WP:
WD:
RL:
RP:
RD:
n:
m:
WRITE PORTD
WRITE DDRD
READ PORTD LATCH
READ PORTD PIN
READ DDRD
6, 7
0, 1
PWRDN
DDDn
PORTDn
RL
RP
PWRDN: POWER DOWN MODE