ATA8743 ATMEL Corporation, ATA8743 Datasheet - Page 82

• Manufacturer Part Number: ATA8743
• Manufacturer: ATMEL Corporation

82
ATA8743
• 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
overriding signals shown in
Table 19-4.
Signal
Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
PA7/ADC7/OC0B/ICP1/
PCINT7
0
0
0
0
OC0B
0
PCINT7 • PCIE0 + ADC7D
PCINT7/ICP1 Input
ADC7 Input
OC0B enable
PCINT7 • PCIE0
Overriding Signals for Alternate Functions in PA7..PA5
to
Table 19-6 on page 83
Figure 19-5 on page
PA6/ADC6/DI/SDA/OC1A/
PCINT6
0
0
USIWM1
(SDA + PORTA6) • DDRA6
(USIWM1 • DDA6) + OC1A
enable
( USIWM1• DDA6) • OC1A
0
USISIE + (PCINT6 • PCIE0)
+ ADC6D
USISIE + PCINT7 • PCIE0
DI/SDA/PCINT6 Input
ADC6 Input
.
.
78.
relate the alternate functions of Port A to the
PA5/ADC5/DO/OC1B/
PCINT5
0
0
0
0
(USIWM1 • USIWM0) +
OC1B enable
USIWM1 • USIWM0 • DO +
(~USIWM1 • USIWM0) •
OC1B}
0
PCINT5 • PCIE + ADC5D
PCINT5 • PCIE
PCINT5 Input
ADC5 Input
9152A–INDCO–07/09