atmega161-4pi ATMEL Corporation, atmega161-4pi Datasheet - Page 108

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

Port E Schematics
108
ATmega161(L)
Figure 71. Port E Schematic Diagram (Pin PE0)
Figure 72. Port E Schematic Diagram (Pin PE1)
WP:
WD:
RL:
RP:
RD:
ACIC:
ACO:
WP:
WD:
RL:
RP:
RD:
SRE:
ALE: ALE PULSE FROM XRAM
PE0
WRITE PORTE
WRITE DDRE
READ PORTE LATCH
READ PORTE PIN
READ DDRE
COMPARATOR IC ENABLE
COMPARATOR OUTPUT
PE1
WRITE PORTE
WRITE DDRE
READ PORTE LATCH
READ PORTE PIN
READ DDRE
XRAM ENABLE
MOS
PULL-
UP
MOS
PULL-
UP
ISC2
0
1
'1'
NOISE CANCELER
Q
ICNC1
PORTE0
C
R
RL
RP
D
EDGE SELECT
Q
Q
ICES1
PORTE0
RESET
RESET
DDE0
RP
RL
WD
WP
RD
R
C
R
C
Q
Q
ALE
SRE
PORTE1
RESET
RESET
DDE1
WD
WP
RD
D
D
R
C
R
C
D
D
ICF1
ACIC
ACO
HW CLEAR
SW CLEAR
INT2
1228D–AVR–02/07