AT90USB1286-16MU ATMEL [ATMEL Corporation], AT90USB1286-16MU Datasheet - Page 91

• Manufacturer Part Number: AT90USB1286-16MU
• Description: Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
• Manufacturer: ATMEL [ATMEL Corporation]

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