ATMEGA169 ATMEL [ATMEL Corporation], ATMEGA169 Datasheet - Page 63
ATMEGA169
Manufacturer Part Number
ATMEGA169
Description
8-bit Microcontroller with 16K Bytes In-System Programmable Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATMEGA169.pdf
(365 pages)
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Alternate Functions of Port B
2514P–AVR–07/06
Table 29. Overriding Signals for Alternate Functions in PA3..PA0
The Port B pins with alternate functions are shown in Table 30.
Table 30. Port B Pins Alternate Functions
The alternate pin configuration is as follows:
• OC2A/PCINT15, Bit 7
OC2, Output Compare Match A output: The PB7 pin can serve as an external output for
the Timer/Counter2 Output Compare A. The pin has to be configured as an output
(DDB7 set (one)) to serve this function. The OC2A pin is also the output pin for the PWM
mode timer function.
PCINT15, Pin Change Interrupt source 15: The PB7 pin can serve as an external inter-
rupt source.
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
Port Pin
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
Alternate Functions
OC2A/PCINT15 (Output Compare and PWM Output A for Timer/Counter2 or Pin
Change Interrupt15).
OC1B/PCINT14 (Output Compare and PWM Output B for Timer/Counter1 or Pin
Change Interrupt14).
OC1A/PCINT13 (Output Compare and PWM Output A for Timer/Counter1 or Pin
Change Interrupt13).
OC0A/PCINT12 (Output Compare and PWM Output A for Timer/Counter0 or Pin
Change Interrupt12).
MISO/PCINT11 (SPI Bus Master Input/Slave Output or Pin Change Interrupt11).
MOSI/PCINT10 (SPI Bus Master Output/Slave Input or Pin Change Interrupt10).
SCK/PCINT9 (SPI Bus Serial Clock or Pin Change Interrupt9).
SS/PCINT8 (SPI Slave Select input or Pin Change Interrupt8).
PA3/COM3
LCDEN •
(LCDMUX>2)
0
LCDEN •
(LCDMUX>2)
0
0
0
–
LCDEN •
(LCDMUX>2)
0
–
COM3
PA2/COM2
LCDEN •
(LCDMUX>1)
0
LCDEN •
(LCDMUX>1)
0
0
0
–
LCDEN •
(LCDMUX>1)
0
–
COM2
PA1/COM1
LCDEN •
(LCDMUX>0)
0
LCDEN •
(LCDMUX>0)
0
0
0
–
LCDEN •
(LCDMUX>0)
0
–
COM1
ATmega169/V
PA0/COM0
LCDEN
0
LCDEN
0
0
0
–
LCDEN
0
–
COM0
63
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