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149

AT32UC3A

Table 20-4. EBI Pins and External SDRAM Devices Connections

Signals

Pins of the Interfaced

Device

SDRAM

Controller SDRAMC

D0 - D15 D0 - D15

A0/NBS0 DQM0

A1/NWR2/NBS2 DQM2

A2 - A10 A[0:8]

A11 A9

SDA10 A10

A12 –

A13 - A14 A[11:12]

A15 –

A16/BA0 BA0

A17/BA1 BA1

A18 - A23 –

NCS0 –

NCS1/SDCS0 CS[0]

NCS2 –

NCS2 –

NCS3 –

NRD/NOE –

NWR0/NWE –

NWR1/NBS1 DQM1

NWR3/NBS3 DQM3

SDCK CLK

SDCKE CKE

RAS RAS

CAS CAS

SDWE WE

NWAIT –

32058K

AVR32-01/12