ATA8742-PXQW【PDF 82/238 页】MCU W/TRANSMITTER ASK/FSK 24QFN

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Sheet目录52

78页 79页 80页 81页 [82页]83页 84页 85页 86页

9151AINDCO07/09

ATA8742

" Port A, Bit 6 ADC6/DI/SDA/OC1A/PCINT6

ADC6: Analog to Digital Converter, Channel 6.

SDA: Two-wire mode Serial Interface Data.

DI: Data Input in USI Three-wire mode. USI Three-wire mode does not override normal port

functions, so pin must be configure as an input for DI function.

OC1A, Output Compare Match output: The PA6 pin can serve as an external output for the

Timer/Counter1 Compare Match A. The PA6 pin has to be configured as an output (DDA6 set

(one)) to serve this function. The OC1A pin is also the output pin for the PWM mode timer

function.

PCINT6: Pin Change Interrupt source 6. The PA6 pin can serve as an external interrupt source

for pin change interrupt 0.

" Port A, Bit 7 ADC7/OC0B/ICP1/PCINT7

ADC7: Analog to Digital Converter, Channel 7.

OC1B, Output Compare Match output: The PA7 pin can serve as an external output for the

Timer/Counter1 Compare Match B. The PA7 pin has to be configured as an output (DDA7 set

(one)) to serve this function. The OC1B pin is also the output pin for the PWM mode timer

function.

ICP1, Input Capture Pin: The PA7 pin can act as an Input Capture Pin for Timer/Counter1.

PCINT7: Pin Change Interrupt source 7. The PA7 pin can serve as an external interrupt source

for pin change interrupt 0.

Table 19-4 on page 82 to Table 19-6 on page 83 relate the alternate functions of Port A to the

overriding signals shown in Figure 19-5 on page 78.

Table 19-4. Overriding Signals for Alternate Functions in PA7..PA5

Signal

Name

PA7/ADC7/OC0B/ICP1/

PCINT7

PA6/ADC6/DI/SDA/OC1A/

PCINT6

PA5/ADC5/DO/OC1B/

PCINT5

PUOE

PUOV

DDOE

USIWM1

DDOV

(SDA

+ PORTA6

) " DDRA6

PVOE

OC0B enable

(USIWM1 " DDA6) + OC1A

enable

(USIWM1

" USIWM0) +

OC1B enable

PVOV

OC0B

( USIWM1

DDA6)

" OC1A

USIWM1

" USIWM0 " DO +

(~USIWM1

USIWM0)

OC1B}

PTOE

DIEOE

PCINT7 " PCIE0 + ADC7D

USISIE + (PCINT6 " PCIE0)

+ ADC6D

PCINT5 " PCIE + ADC5D

DIEOV

PCINT7 " PCIE0

USISIE + PCINT7 " PCIE0

PCINT5 " PCIE

PCINT7/ICP1 Input

DI/SDA/PCINT6 Input

PCINT5 Input

AIO

ADC7 Input

ADC6 Input

ADC5 Input

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