atmega161-4pi ATMEL Corporation, atmega161-4pi Datasheet - Page 97

• Manufacturer Part Number: atmega161-4pi
• Description: 8-bit Microcontroller With 16k Bytes Of In-system Programmable Flash
• Manufacturer: ATMEL Corporation

1228D–AVR–02/07
Figure 61. Port B Schematic Diagram (Pin PB6)
Figure 62. Port B Schematic Diagram (Pin PB7)
PB6
PB7
WP:
WD:
RL:
RP:
RD:
SPE:
MSTR
WP:
WD:
RL:
RP:
RD:
SPE:
MSTR
MOS
PULL-
UP
WRITE PORTB
WRITE DDRB
READ PORTB LATCH
READ PORTB PIN
READ DDRB
SPI ENABLE
MASTER SELECT
MOS
PULL-
UP
WRITE PORTB
WRITE DDRB
READ PORTB LATCH
READ PORTB PIN
READ DDRB
SPI ENABLE
MASTER SELECT
RL
RP
RL
RP
ATmega161(L)
Q
Q
Q
PORTB6
Q
RESET
RESET
PORTB7
DDB6
RESET
RESET
DDB7
WD
WP
RD
WD
RD
WP
R
C
R
C
R
C
R
C
D
D
D
D
MSTR
SPE
SPI SLAVE
OUT
SPI MASTER
IN
MSTR
SPE
SPI ClLOCK
OUT
SPI CLOCK
IN
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