Integrated in MAIN domain:
One instance of the General-Purpose Memory Controller (GPMC) module. The GPMC
is dedicated to interfacing with external memory devices and has the following main
features:
- Support of 8- or 16-bit-wide
data path to external memory devices
- Supports up to 4 independent
chip-select regions of programmable size and programmable base addresses on
16MB, 32MB, 64MB, or 128MB boundary in a total address space of 1GB
- Support of the following wide
range of external memories/devices:
- Asynchronous or
synchronous 8-bit wide memory or device (non-burst device)
- Asynchronous or
synchronous 16-bit wide memory or device
- 16-bit
non-multiplexed NOR flash device
- 16-bit address and
data multiplexed NOR flash device
- 8-bit and 16-bit NAND
flash device
- 16-bit pseudo-SRAM
(pSRAM) device
- Supports various interface
protocols when communicating with external memory or external devices:
- Asynchronous
read/write access
- Asynchronous read
page access (4, 8, and 16 Word16)
- Synchronous
read/write access
- Synchronous read
burst access without wrap capability (4, 8, and 16 Word16)
- Synchronous read
burst access with wrap capability (4, 8, and 16 Word16)
- Supports up to 16-bit
on-the-fly error code detection using the Bose-Chaudhuri-Hocquenghem (BCH)
or Hamming code to improve the reliability of NAND with a minimum effect on
software (NAND flash with 512-byte page size or greater)