SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 40

• Manufacturer Part Number: SAM3X8E
• Manufacturer: Atmel Corporation

9.2
9.2.1
9.2.2
9.2.3
9.2.4
42
42
External Memories
SAM3X/A
SAM3X/A
External Memory Bus
Static Memory Controller
NAND Flash Controller
NAND Flash Error Corrected Code Controller
The 144-pin SAM3X features one External Memory Bus to offer interface to a wide range of
external memories and to any parallel peripheral.
• Integrates Four External Memory Controllers:
• Up to 24-bit Address Bus (up to 16 MBytes linear per chip select)
• Up to 8 chip selects, Configurable Assignment
• 8- or 16-bit Data Bus
• Multiple Access Modes supported
• Multiple device adaptability
• Multiple Wait State Management
• Slow Clock mode supported
• Handles automatic Read/write transfer through 4224 bytes SRAM buffer
• DMA support
• Supports SLC NAND Flash technology
• Programmable timing on a per chip select basis
• Programmable Flash Data width 8-bit or 16-bit
• Integrated in the NAND Flash Controller
• Single bit error correction and 2-bit Random detection.
• Automatic Hamming Code Calculation while writing
• Automatic Hamming Code Calculation while reading
– Static Memory Controller
– NAND Flash Controller
– SLC NAND Flash ECC Controller
– Single Data Rate Synchronous Dynamic Random Access Memory (SDR-SDRAM)
– Byte Write or Byte Select Lines
– Asynchronous read in Page Mode supported (4- up to 32-byte page size)
– Control signals programmable setup, pulse and hold time for each Memory Bank
– Programmable Wait State Generation
– External Wait Request
– Programmable Data Float Time
– ECC value available in a register
– Error Report, including error flag, correctable error flag and word address being
– Support 8- or 16-bit NAND Flash devices with 512-, 1024-, 2048- or 4096-byte
detected erroneous
pages
11057AS–ATARM–10-Feb-12
11057AS–ATARM–10-Feb-12