ATMEGA640 datasheet(79/436 Pages) MICROCHIP

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ATmega640/V-1280/V-1281/V-2560/V-2561/V [DATASHEET]

DS40002211A

13.3.3

Alternate Functions of Port C

The Port C alternate function is as follows:

Table 13-10 and Table 13-11 on page 80 relate the alternate functions of Port C to the overriding signals shown in

Figure 13-5 on page 73.

Table 13-9.

Port C Pins Alternate Functions

Port Pin

Alternate Function

PC7

A15 (External Memory interface address bit 15)

PC6

A14 (External Memory interface address bit 14)

PC5

A13 (External Memory interface address bit 13)

PC4

A12 (External Memory interface address bit 12)

PC3

A11 (External Memory interface address bit 11)

PC2

A10 (External Memory interface address bit 10)

PC1

A9 (External Memory interface address bit 9)

PC0

A8 (External Memory interface address bit 8)

Table 13-10. Overriding Signals for Alternate Functions in PC7:PC4

Signal Name

PC7/A15

PC6/A14

PC5/A13

PC4/A12

PUOE

SRE • (XMM<1)

SRE • (XMM<2)

SRE • (XMM<3)

SRE • (XMM<4)

PUOV

0000

DDOE

SRE • (XMM<1)

SRE • (XMM<2)

SRE • (XMM<3)

SRE • (XMM<4)

DDOV

1111

PVOE

SRE • (XMM<1)

SRE • (XMM<2)

SRE • (XMM<3)

SRE • (XMM<4)

PVOV

A15

A14

A13

A12

DIEOE

0000

DIEOV

0000

––––

AIO

––––

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