r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1400

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

27. NAND Flash Memory Controller (FLCTL)
(2)
Continuous physical sectors can be read from or written to by specifying the start physical sector
address of NAND-type flash memory and the number of sectors to be transferred. Figure 27.10
shows an example of physical sector specification register and transfer count specification register
settings when transferring logical sectors 0 to 40, which are not contiguous because of an unusable
sector in NAND-type flash memory.
Rev.1.00 Jan. 10, 2008 Page 1370 of 1658
REJ09B0261-0100
Physical
sector
300
Continuous Sector Access
11
12
13
40
0
Figure 27.10 Sector Access when Unusable Sector Is in Continuous Sectors
Logical
sector
***
11
13
40
12
0
(FLADR, ADR17 to ADR0)
Physical sector
specification
Values specified in registers by CPU
300
00
13
(FLCMDCR, SCTCNT)
Physical sector
transfer count
12
28
1
Transfer start
Transfer start
Transfer start
Sectors 0 to 11 are transferred
Sector 12 is transferred
Sectors 13 to 40 are transferred