Datasheet

302
32117D–AVR-01/12
AT32UC3C
Table 17-1. EBI I/O Lines Description
Pin Name
Alternate
Name Pin Description Type
Active
Level
EBI common lines
DATA[15:0] Data Bus I/O
SMC dedicated lines
ADDR[1] SMC Address Bus Line 1 Output
ADDR[12] SMC Address Bus Line 12 Output
ADDR[15] SMC Address Bus Line 15 Output
ADDR[23:18] SMC Address Bus Line [23:18] Output
NCS[0] SMC Chip Select Line 0 Output Low
NCS[2] SMC Chip Select Line 2 Output Low
NCS[3] SMC Chip Select Line 3 Output Low
NRD SMC Read Signal Output Low
NWAIT SMC External Wait Signal Input Low
NWE0 NWE0-NWE SMC Write Enable1 or Write enable Output Low
SDRAMC dedicated lines
SDCK SDRAM Clock Output
SDCKE SDRAM Clock Enable Output High
SDWE SDRAM Write Enable Output Low
SDA10 SDRAM Address Bus Line 10 Output Low
RAS - CAS Row and Column Signal Output Low
SMC/SDRAMC shared lines
ADDR[0]
DQM0
ADDR[0]-NBS0
SDRAMC DQM1
SMC Address Bus Line 0 or Byte Select 0
Output
ADDR[11:2]
ADDR[9:0]
ADDR[11:2]
SDRAMC Address Bus Lines [9:0]
SMC Address Bus Lines [11:2]
Output
ADDR[14:13]
ADDR[9:0]
ADDR[14:13]
SDRAMC Address Bus Lines [12:11]
SMC Address Bus Lines [14:13]
Output
ADDR[16]
BA0
ADDR[16]
SDRAMC Bank 0
SMC Address Bus Line 16
Output
ADDR[17]
BA1
ADDR[17]
SDRAMC Bank 1
SMCAddress Bus Line 17
Output
NCS[1]
NCS[1]
SDCS
SMC Chip Select Line 1
SDRAMC Chip Select
Output Low
NWE1
DQM1
NWE1-NBS1
SDRAMC DQM1
SMC Write Enable1 or Byte Select 1
Output