AT90S/LS2333 and AT90S/LS4433
62
Figure 52. Port B Schematic Diagram (Pin PB2)
Figure 53. Port B Schematic Diagram (Pin PB3)
DA
T
A
BUS
D
D
Q
Q
RESET
RESET
C
C
WD
WP
RD
MOS
PULL-
UP
PB2
SPI SS
MSTR
SPE
WP:
WD:
RL:
RP:
RD:
MSTR:
SPE:
WRITE PORTB
WRITE DDRB
READ PORTB LATCH
READ PORTB PIN
READ DDRB
SPI MASTER ENABLE
SPI ENABLE
DDB2
PORTB2
RL
RP
DA
T
A
BUS
D
D
Q
Q
RESET
RESET
C
C
WD
WP
RD
MOS
PULL-
UP
PB3
R
R
WP:
WD:
RL:
RP:
RD:
SPE:
MSTR
WRITE PORTB
WRITE DDRB
READ PORTB LATCH
READ PORTB PIN
READ DDRB
SPI ENABLE
MASTER SELECT
DDB3
PORTB3
SPE
MSTR
SPI MASTER
OUT
SPI SLAVE
IN
RL
RP