Datasheet

Signal
Name
PB3/MISO PB2/MOSI PB1/SCK PB0/SS
DDOE SPE • MSTR SPE • MSTR SPE • MSTR SPE • MSTR
DDOV 0 0 0 0
PVOE SPE • MSTR SPE • MSTR SPE • MSTR 0
PVOV SPI SLAVE OUTPUT SPI MSTR OUTPUT SCK OUTPUT 0
DIEOE 0 0 0 0
DIEOV 0 0 0 0
DI SPI MSTR INPUT SPI SLAVE INPUT SCK INPUT SPI SS
AIO – – – –
Related Links
Output Compare Modulator (OCM1C2) on page 233
18.3.3. Alternate Functions of Port C
In ATmega103 compatibility mode, Port C is output only. The Port C has an alternate function as the
address high byte for the External Memory Interface.
Table 18-9 Port C Pins Alternate Functions
Port Pin Alternate Function
PC7 A15
PC6 A14
PC5 A13
PC4 A12
PC3 A11
PC2 A10
PC1 A9
PC0 A8
The two following tables relate the alternate functions of Port C to the overriding signals shown in the
figure in section Alternate Port Functions on page 96.
The alternate pin configuration is as follows:
Table 18-10 Overriding Signals for Alternate Functions in PC7:PC4
Signal
Name
PC7/A15 PC6/A14 PC5/A13 PC4/A12
PUOE SRE • (XMM
(1)
<1) SRE • (XMM<2) SRE • (XMM<3) SRE • (XMM<4)
PUOV 0 0 0 0
DDOE SRE • (XMM<1) SRE • (XMM<2) SRE • (XMM<3) SRE • (XMM<4)
Atmel ATmega64A [DATASHEET]
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