Renesas R5S72621 ユーザーズマニュアル
Section 25 NAND Flash Memory Controller
R01UH0134EJ0400 Rev. 4.00
Page 1297 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
25.3.2
Command Control Register (FLCMDCR)
FLCMDCR is a 32-bit readable/writable register that issues a command in command access mode,
specifies address issue, and specifies source or destination of data transfer. In sector access mode,
FLCMDCR specifies the number of sector transfers.
specifies address issue, and specifies source or destination of data transfer. In sector access mode,
FLCMDCR specifies the number of sector transfers.
Bit:
Initial value:
R/W:
Bit:
Initial value:
R/W:
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
ADR
CNT2
SCTCNT[19:16]
ADR
MD
CDS
RC
DOSR
-
-
SEL
RW
DOA
DR
ADRCNT[1:0]
DOC
MD2
DOC
MD1
SCTCNT[15:0]
Bit Bit
Name
Initial
Value
Value
R/W Description
31 ADRCNT2
0
R
Address
Issue
Byte Count Specification 2
Specifies the number of bytes for the address data to
be issued in address stage. This bit is used together
with ADRCNT[1:0].
be issued in address stage. This bit is used together
with ADRCNT[1:0].
0: Issue the address of byte count, specified by
ADRCNT[1:0].
1: Issue 5-byte address. ADRCNT[1:0] should be set
to 00.
30 to 27 SCTCNT
[19:16]
0000
R/W
Sector Transfer Count Specification [19:16]
These bits are extended bits of the sector transfer count
specification bits (SCTCNT) 15 to 0.
specification bits (SCTCNT) 15 to 0.
SCTCNT[19:16] and SCTCNT[15:0] are used together
to operate as SCTCNT[19:0], the 20-bit counter.
to operate as SCTCNT[19:0], the 20-bit counter.
26
ADRMD
0
R/W
Sector Access Address Specification
This bit is invalid in command access mode. This bit is
valid only in sector access mode.
valid only in sector access mode.
0: The value of the address register is handled as a
sector address. Use this value usually in sector
access.
access.
1: The value of the address register is output as the
address of flash memory.
Note: Clear this bit to 0 in continuous sector access.