Datasheet

10
AT32UC3A
External Bus Interface - HEBI
ADDR0 - ADDR23 Address Bus Output
CAS Column Signal Output Low
DATA0 - DATA15 Data Bus I/O
NCS0 - NCS3 Chip Select Output Low
NRD Read Signal Output Low
NWAIT External Wait Signal Input Low
NWE0 Write Enable 0 Output Low
NWE1 Write Enable 1 Output Low
NWE3 Write Enable 3 Output Low
RAS Row Signal Output Low
SDA10 SDRAM Address 10 Line Output
SDCK SDRAM Clock Output
SDCKE SDRAM Clock Enable Output
SDCS0 SDRAM Chip Select Output Low
SDWE SDRAM Write Enable Output Low
General Purpose Input/Output 2 - GPIOA, GPIOB, GPIOC
P0 - P31 Parallel I/O Controller GPIOA I/O
P0 - P31 Parallel I/O Controller GPIOB I/O
P0 - P5 Parallel I/O Controller GPIOC I/O
P0 - P31 Parallel I/O Controller GPIOX I/O
Serial Peripheral Interface - SPI0, SPI1
MISO Master In Slave Out I/O
MOSI Master Out Slave In I/O
NPCS0 - NPCS3 SPI Peripheral Chip Select I/O Low
SCK Clock Output
Synchronous Serial Controller - SSC
RX_CLOCK SSC Receive Clock I/O
Table 5-1. Signal Description List
Signal Name Function Type
Active
Level Comments
32058KS–AVR32–01/12