AT90USB64/128
Analog to Digital Converter, Channel 3..0.
Table 10-19. Overriding Signals for Alternate Functions in PF7..PF4
Signal
Name
PUOE
PUOV
DDOE
PF7/ADC7/TDI
JTAGEN
1
PF6/ADC6/TDO
JTAGEN
0
PF5/ADC5/TMS
JTAGEN
1
PF4/ADC4/TCK
JTAGEN
1
JTAGEN
JTAGEN
JTAGEN
JTAGEN
SHIFT_IR +
SHIFT_DR
DDOV
0
0
0
PVOE
PVOV
DIEOE
DIEOV
DI
0
JTAGEN
0
0
0
TDO
0
0
JTAGEN
JTAGEN
JTAGEN
JTAGEN
0
–
0
–
0
–
0
–
TMS/ADC5
INPUT
TCK/ADC4
INPUT
AIO
TDI/ADC7 INPUT ADC6 INPUT
Table 10-20. Overriding Signals for Alternate Functions in PF3..PF0
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
PF3/ADC3
PF2/ADC2
PF1/ADC1
PF0/ADC0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
–
–
–
–
AIO
ADC3 INPUT
ADC2 INPUT
ADC1 INPUT
ADC0 INPUT
10.4 Register Description for I/O-Ports
10.4.1
Port A Data Register – PORTA
Bit
7
6
5
4
3
2
1
0
PORTA
7
PORTA
6
PORTA
5
PORTA
4
PORTA
3
PORTA
2
PORTA
1
PORTA
0
PORTA
Read/Write
Initial Value
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
91
7593A–AVR–02/06
ATMEL [ ATMEL ]
