SH7764 Datasheet, PDF (1364/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 25 NAND Flash Memory Controller (FLCTL)
25.4.3 Command Access Mode
Command access mode accesses flash memory by specifying a command to be issued to flash
memory, address, data, read or write direction, and number of times to the registers. In this mode,
I/O data can be transferred by the DMA via FLDTFIFO.
NAND-Type Flash Memory Access: Figure 25.3 shows an example of read operation for
NAND-type flash memory. In this example, the first command is specified as H'00, address data
length is specified as 3 bytes, and the number of read bytes is specified as 8 bytes in the data
counter.
CLE
ALE
WE
RE
I/O7 to I/O0
H'00
R/B
A1 A2 A3
1 2 3 4 58
Figure 25.3 Read Operation Timing for NAND-Type Flash Memory (1)
Figures 25.4 and 25.5 show examples of programming operation for NAND-type flash memory.
Rev. 1.00 Nov. 22, 2007 Page 1308 of 1692
REJ09B0360-0100