r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1374

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

27. NAND Flash Memory Controller (FLCTL)
27.3.1
FLCMNCR is a 32-bit readable/writable register that specifies the type (NAND) of flash memory,
access mode, and FCE pin output.
Rev.1.00 Jan. 10, 2008 Page 1344 of 1658
REJ09B0261-0100
Initial value:
Initial value:
Bit
31 to 19
18
17
16
R/W:
R/W:
Bit:
Bit:
Common Control Register (FLCMNCR)
Bit Name
—
SNAND
QTSEL
—
R/W
FCK
SEL
31
15
R
0
0
30
14
R
R
0
0
29
13
R
R
Initial
Value
All 0
0
0
0
0
0
28
12
R
R
0
0
R/W
27
11
R/W
R
R/W
R/W
R
R
0
0
ACM[1:0]
R/W
26
10
R
0
0
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Large Capacity NAND Flash Memory Select
This bit is used to specify the NAND flash memory that
a page consists of 2048 + 64 bytes.
0: Selects the flash memory that a page consists of 512
1: Selects the flash memory that a page consists of
Quarter Flash Clock Select
0: Uses the FCLK selected by the FCKSEL bit
1: Divides the operating clock of the FLCTL (a
Note: When FCKSEL = 1, setting this bit to 1 is
Reserved
This bit is always read as 0. The write value should
always be 0.
NAND
R/W
25
WF
R
+ 16 bytes
2048 + 64 bytes
peripheral clock) by four and uses it as the FCLK
when FCKSEL = 0
0
9
0
prohibited.
24
R
R
0
8
0
23
R
R
0
7
0
22
R
R
0
6
0
21
R
R
0
5
0
20
R
R
0
4
0
R/W
CE0
19
R
0
3
0
SNAND
R/W
18
R
0
2
0
QTSEL
R/W
17
R
0
1
0
R/W
TYPE
SEL
16
R
0
0
0