Section 27 NAND Flash Memory Controller (FLCTL)
Rev.1.00 Dec. 13, 2005 Page 1040 of 1286
REJ09B0158-0100
27.3.9
Ready Busy Timeout Counter (FLBSYCNT)
FLBSYCNT is a 32-bit read-only register.
The status of flash memory obtained by the status read is stored in the bits STAT[7:0].
The timeout time set in the bits RBTMOUT[19:0] in FLBSYTMR is copied to the bits
RBTIMCNT[19:0] and counting down is started when the FRB pin is placed in a busy state. When
values in the RBTIMCNT[19:0] become 0, 1 is set to the BTOERB bit in FLINTDMACR, thus
notifying that a timeout error has occurred. In this case, an FLSTE interrupt request can be issued
if an interrupt is enabled by the RBERINTE bit in FLINTDMACR.
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
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Bit:
Initial value:
R/W:
Bit:
Initial value:
R/W:
STAT[7:0]
RBTIMCNT[19:16]
RBTIMCNT[15:0]
Bit Bit
Name
Initial
Value R/W Description
31 to 24 STAT[7:0]
H'00
R
Indicate the flash memory status obtained by the
status read.
23 to 20 —
All 0
R
Reserved
These bits are always read as 0.
19 to 0
RBTIMCNT[19:0] H'00000 R
Ready Busy Timeout Counter
When the FRB pin is placed in a busy state, the
values of the bits RBTMOUT[19:0] in FLBSYTMR
are copied to these bits. These bits are counted
down while the FRB pin is busy. A timeout error
occurs when these bits are decremented to 0.
Содержание SH7780 Series
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Страница 450: ...Section 11 Local Bus State Controller LBSC Rev 1 00 Dec 13 2005 Page 400 of 1286 REJ09B0158 0100 ...
Страница 492: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Dec 13 2005 Page 442 of 1286 REJ09B0158 0100 ...
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Страница 726: ...Section 18 Timer Unit TMU Rev 1 00 Dec 13 2005 Page 676 of 1286 REJ09B0158 0100 ...
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Страница 1070: ...Section 26 Serial Sound Interface SSI Module Rev 1 00 Dec 13 2005 Page 1020 of 1286 REJ09B0158 0100 ...
Страница 1104: ...Section 27 NAND Flash Memory Controller FLCTL Rev 1 00 Dec 13 2005 Page 1054 of 1286 REJ09B0158 0100 ...
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