Datasheet

89
7593L–AVR–09/12
AT90USB64/128
11.4 Register description for I/O-ports
11.4.1 PORTA – Port A Data Register
Table 11-19. Overriding signals for alternate functions in PF7..PF4.
Signal name PF7/ADC7/TDI PF6/ADC6/TDO PF5/ADC5/TMS PF4/ADC4/TCK
PUOE JTAGEN JTAGEN JTAGEN JTAGEN
PUOV 1 0 1 1
DDOE JTAGE N J TAGEN JTAG EN J TAGE N
DDOV 0
SHIFT_IR +
SHIFT_DR
00
PVOE 0 JTAGEN 0 0
PVOV 0 TDO 0 0
DIEO E J TAGEN J TAG EN JTAGEN JTAGE N
DIEOV 0 0 0 0
DI
AIO TDI/ADC7 INPUT ADC6 INPUT TMS/ADC5 INPUT TCK/ADC4 INPUT
Table 11-20. Overriding signals for alternate functions in PF3..PF0.
Signal name PF3/ADC3 PF2/ADC2 PF1/ADC1 PF0/ADC0
PUOE 0 0 0 0
PUOV 0 0 0 0
DDOE 0 0 0 0
DDOV 0 0 0 0
PVOE 0 0 0 0
PVOV 0 0 0 0
DIEOE 0 0 0 0
DIEOV 0 0 0 0
DI
AIO ADC3 INPUT ADC2 INPUT ADC1 INPUT ADC0 INPUT
Bit 76543210
PORTA7 PORTA6 PORTA5 PORTA4 PORTA3 PORTA2 PORTA1 PORTA0 PORTA
Read/write R/W R/W R/W R/W R/W R/W R/W R/W
Initial value00000000