Rainbow-electronics ATmega64M1 Manuel d'utilisateur télécharger pdf (Page 77)

100

101

8209A–AVR–08/09

ATmega16M1/32M1/64M1

SS_A: Slave Port Select input. When the SPI is enabled as a slave, this pin is configured as an

input regardless of the setting of DDD0. As a slave, the SPI is activated when this pin is driven

low. When the SPI is enabled as a master, the data direction of this pin is controlled by DDD0.

When the pin is forced to be an input, the pull-up can still be controlled by the PORTD0 bit.

PCINT9, Pin Change Interrupt 9.

• PCINT8/PSCOUT1A/INT3

– Bit 0

PSCOUT1A, Output 1A of PSC.

INT3, External Interrupt source 3: This pin can serve as an external interrupt source to the MCU.

PCINT8, Pin Change Interrupt 8.

Table 14-7 and Table 14-8 relate the alternate functions of Port C to the overriding signals

shown in Figure 14-5 on page 70.

Table 14-7. Overriding Signals for Alternate Functions in PC7..PC4

Signal Name

PC7/D2A/AMP2+/

PCINT15

PC6/ADC10/

ACMP1/

PCINT14

PC5/ADC9/

AMP1+/ACMP3/

PCINT13

PC4/ADC8/

AMP1-

/ACMPN3/

PCINT12

PUOE 0 0 0

PUOV 0 0 0

DDOE DAEN 0 0 0

DDOV 0 0 0 0

PVOE 0 0 0 –

PVOV 0 0 0 –

DIEOE DAEN ADC10D ADC9D ADC8D

DIEOV 0 0 0 0

AIO – ADC10 Amp1 ADC9 Amp1+

ADC8 Amp1-

ACMPN3

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 342 343

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Rainbow-electronics ATmega64M1 Manuel d'utilisateur Page 77

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