atmega32u4-16mu ATMEL Corporation, atmega32u4-16mu Datasheet - Page 77

• Manufacturer Part Number: atmega32u4-16mu
• Description: Atmega32u4 8-bit Avr Microcontroller With 32k Bytes Of Isp Flash And Usb Controller
• Manufacturer: ATMEL Corporation

7766A–AVR–03/08
Table 10-9.
Table 10-10. 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 2-wire Serial Interface enables Slew-Rate controls on the output pins PD0
and PD1. This is not shown in this table. In addition, spike filters are connected between the
AIO outputs shown in the port figure and the digital logic of the TWI module.
Overriding Signals for Alternate Functions PD7..PD4
PD3/INT3/TXD1
TXEN1
0
TXEN1
1
TXEN1
TXD1
INT3 ENABLE
1
INT3 INPUT
–
PD7/T0/
OC4D/ADC10
0
0
0
0
0
0
0
0
T0 INPUT
–
PD6/T1/
OC4D/ADC9
0
0
0
0
0
0
0
0
T1 INPUT
–
PD2/INT2/RXD1
PORTD2 • PUD
RXEN1
RXEN1
0
0
0
INT2 ENABLE
1
INT2 INPUT/RXD1
–
PD5/XCK1/CTS
0
0
XCK1 OUTPUT
ENABLE
1
XCK1 OUTPUT
ENABLE
XCK1 OUTPUT
0
0
XCK1 INPUT
–
PD1/INT1/SDA/
OC2B
TWEN
PORTD1 • PUD
TWEN
SDA_OUT
TWEN | OC2B
ENABLE
OC2B
INT1 ENABLE
1
INT1 INPUT
SDA INPUT
(1)
ATmega32U4
PD4/ICP1/
ADC8
0
0
0
0
0
0
0
0
ICP1 INPUT
–
PD0/INT0/SCL/
OC0B
TWEN
PORTD0 • PUD
TWEN
SCL_OUT
TWEN | OC0B
ENABLE
OC0B
INT0 ENABLE
1
INT0 INPUT
SCL INPUT
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