ATMEga64L ATMEL Corporation, ATMEga64L Datasheet - Page 78

• Manufacturer Part Number: ATMEga64L
• Description: 8-bit AVR Microcontroller with 64K Bytes In-System Programmable Flash
• Manufacturer: ATMEL Corporation

78
ATmega64(L)
Table 37. Overriding Signals for Alternate Functions PD7..PD4
Table 38. Overriding Signals for Alternate Functions in PD3..PD0
Note:
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
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 con-
nected between the AIO outputs shown in the port figure and the digital logic of the
TWI module.
PD3/INT3/TXD1
TXEN1
0
TXEN1
1
TXEN1
TXD1
INT3 ENABLE
1
INT3 INPUT
–
PD7/T2
0
0
0
0
0
0
0
0
T2 INPUT
–
PD2/INT2/RXD1
RXEN1
PORTD2 • PUD
RXEN1
0
0
0
INT2 ENABLE
1
INT2 INPUT/RXD1
–
PD6/T1
0
0
0
0
0
0
0
0
T1 INPUT
–
PD5/XCK1
0
0
0
0
UMSEL1
XCK1 OUTPUT
0
0
XCK1 INPUT
–
PD1/INT1/SDA
TWEN
PORTD1 • PUD
TWEN
SDA_OUT
TWEN
0
INT1 ENABLE
1
INT1 INPUT
SDA INPUT
(1)
PD0/INT0/SCL
TWEN
PORTD0 • PUD
TWEN
SCL_OUT
TWEN
0
INT0 ENABLE
1
INT0 INPUT
SCL INPUT
PD4/IC1
0
0
0
0
0
0
0
0
IC1 INPUT
–
2490G–AVR–03/04