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ATmega64A Datasheet(PDF) 82 Page - ATMEL Corporation

Part # ATmega64A
Description  8-bit Microcontroller with 64K Bytes In-System Programmable Flash
PDF  392 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega64A Datasheet(HTML) 82 Page - ATMEL Corporation

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82
8160C–AVR–07/09
ATmega64A
Note:
1. When enabled, the Two-wire Serial Interface enables Slew-rate controls on the output pins
PD0 and PD1. This is not shown on the figure. In addition, spike filters are connected between
the AIO outputs shown in the port figure and the digital logic of the TWI module.
Table 13-13. Overriding Signals for Alternate Functions PD7:PD4
Signal Name
PD7/T2
PD6/T1
PD5/XCK1
PD4/ICP1
PUOE
0
0
0
0
PUOV
0
0
0
0
DDOE
0
0
0
0
DDOV
0
0
0
0
PVOE
0
0
UMSEL1
0
PVOV
0
0
XCK1 OUTPUT
0
DIEOE
0
0
0
0
DIEOV
0
0
0
0
DI
T2 INPUT
T1 INPUT
XCK1 INPUT
ICP1 INPUT
AIO
–
–
–
–
Table 13-14. Overriding Signals for Alternate Functions in PD3:PD0
(1)
Signal Name
PD3/INT3/TXD1
PD2/INT2/RXD1
PD1/INT1/SDA
PD0/INT0/SCL
PUOE
TXEN1
RXEN1
TWEN
TWEN
PUOV
0
PORTD2 • PUD
PORTD1 • PUD
PORTD0 • PUD
DDOE
TXEN1
RXEN1
TWEN
TWEN
DDOV
1
0
SDA_OUT
SCL_OUT
PVOE
TXEN1
0
TWEN
TWEN
PVOV
TXD1
0
0
0
DIEOE
INT3 ENABLE
INT2 ENABLE
INT1 ENABLE
INT0 ENABLE
DIEOV
1
1
1
1
DI
INT3 INPUT
INT2 INPUT/RXD1
INT1 INPUT
INT0 INPUT
AIO
–
–
SDA INPUT
SCL INPUT



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