SH7203 Datasheet, PDF (1106/1686 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 22 AND/NAND Flash Memory Controller (FLCTL)
22.4.3 Register Setting Procedure
Figure 22.3 shows the register setting flow required for accessing the flash memory.
Start
Start the setting procedure after the
current transfer has been completed
Also set FLADR2 when 5th address
is output in command access.
Not required in sector access
Not required in reading.
Not required when FLDTFIFO is used.
Not required in reading
Not required in reading
Start the transfer
Wait until the transfter is completed
No
FLTRCR = All 0?
Yes
Set FLCMNCR
Set FLCMDCR
Set FLCMCDR
Set FLADR
Set FLDTCNTR
Set FLDATAR
Set FLCMNCR
Set FLINTDMACR
Set FLBSYTMR
Set FLDTFIFO
Set FLECFIFO
Except FLTRCR,
No
register settings completed?
Yes
Set FLTRCR to H'01
No
TREND in FLTRCR = 1?
Yes
Set FLTRCR to H'00
End
Figure 22.3 Register Setting Flow
Rev. 2.00 Apr. 16, 2008 Page 1076 of 1652
REJ09B0313-0200