Rainbow Electronics ATmega64M1 - Manual (Page 81)

81
8209A–AVR–08/09
ATmega16M1/32M1/64M1
OC1A, Output Compare Match A output: This pin can serve as an external output for the
Timer/Counter1 Output Compare A. The pin has to be configured as an output (DDD2 set “one”)
to serve this function. The OC1A pin is also the output pin for the PWM mode timer function.
MISO_A: Master Data input, Slave Data output pin for SPI channel. When the SPI is enabled as
a master, this pin is configured as an input regardless of the setting of DDD2. When the SPI is
enabled as a slave, the data direction of this pin is controlled by DDD2. When the pin is forced to
be an input, the pull-up can still be controlled by the PORTD2 bit.
PCINT18, Pin Change Interrupt 18.
• PCINT17/PSCIN0/CLKO – Bit 1
PCSIN0, PSC Digital Input 0.
CLKO, Divided System Clock: The divided system clock can be output on this pin. The divided
system clock will be output if the CKOUT Fuse is programmed, regardless of the PORTD1 and
DDD1 settings. It will also be output during reset.
PCINT17, Pin Change Interrupt 17.
• PCINT16/PSCOUT0A – Bit 0
PSCOUT0A: Output 0 of PSC 0.
PCINT16, Pin Change Interrupt 16.
Table 14-10 and Table 14-11 relates the alternate functions of Port D to the overriding signals
shown in Figure 14-5 on page 70 .
Table 14-10. Overriding Signals for Alternate Functions PD7..PD4
Signal Name
PD7/
ACMP0/
PCINT23
PD6/ADC3/
ACMPN2/INT0/
PCINT22
PD5/ADC2/
ACMP2/PCINT21
PD4/ADC1/RXD/
RXLIN/ICP1A/
SCK_A/PCINT20
PUOE 0 0 0
RXEN + SPE •
MSTR • SPIPS
PUOV 0 0 0
PD4 •
PUD
DDOE 0 0 0
RXEN + SPE •
MSTR • SPIPS
DDOV 0 0 0 0
PVOE 0 0 0
SPE • MSTR •
SPIPS
PVOV 0 0 0 –
DIEOE ACMP0D ADC3D + In0en ADC2D ADC1D
DIEOV 0 In0en 0 0
DI – INT0 ICP1A
AIO ACOMP0
ADC3
ACMPM
ADC2
ACOMP2
ADC1