SH7785 Datasheet, PDF (1367/1692 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

27. NAND Flash Memory Controller (FLCTL)
Section 27 NAND Flash Memory Controller (FLCTL)
The NAND flash memory controller (FLCTL) provides interfaces with an external NAND-type
flash memory.
27.1 Features
(1) NAND-Type Flash Memory Interface
• Interface that can be connected to NAND-type flash memory
• Read or write in sector* units (512 + 16 bytes)
• Read or write in byte units
Note: * In the data sheet of NAND-type flash memory, an access unit of some products is
defined to be 2048 + 64 bytes as a page. In this document, a sector always refers to the
access unit of 512 + 16 bytes.
(2) Access Modes
The FLCTL has two selectable access modes.
• Command access mode:
Performs an access by specifying a command to be issued from the FLCTL to flash memory,
address, and data size to be input or output.
• Sector access mode:
Read or write in physical sector units by specifying a physical sector. By specifying the
number of sectors, the continuous physical sectors can be read from or written to.
(3) Sectors and Control Codes
• A sector is comprised of 512-byte data and 16-byte control code.
(4) Data Error
• When a program error or erase error occurs, the error is reflected on the error source flags.
Interrupts for each source can be specified.
Rev.1.00 Jan. 10, 2008 Page 1337 of 1658
REJ09B0261-0100