ATmega64A
13.3.3
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 13-9. Port C Pins Alternate Functions
Port Pin
PC7
Alternate Function
A15
A14
A13
A12
A11
A10
A9
PC6
PC5
PC4
PC3
PC2
PC1
PC0
A8
Table 13-10 and Table 13-11 relate the alternate functions of Port C to the overriding signals
shown in Figure 13-5 on page 73.
Table 13-10. Overriding Signals for Alternate Functions in PC7:PC4
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
PC7/A15
PC6/A14
PC5/A13
PC4/A12
SRE • (XMM(1)<1)
SRE • (XMM<2)
SRE • (XMM<3)
SRE • (XMM<4)
0
0
0
0
SRE • (XMM<1)
SRE • (XMM<2)
SRE • (XMM<3)
SRE • (XMM<4)
1
1
1
1
SRE • (XMM<1)
SRE • (XMM<2)
SRE • (XMM<3)
SRE • (XMM<4)
A11
0
A10
0
A9
0
A8
0
0
0
0
0
–
–
–
–
AIO
–
–
–
–
79
8160C–AVR–07/09
ATMEL [ ATMEL ]
