Section 11 Local Bus State Controller (LBSC)
Rev. 1.00 Oct. 01, 2007 Page 340 of 1956
REJ09B0256-0100
11.4.3
CSn Bus Control Register (CSnBCR)
CSnBCR is a 32-bit readable/writable register that specifies the bus width for area n (n
=
0 to 2
and 4 to 6), numbers of wait, setup, and hold cycles to be inserted, burst length, and memory
types.
Some types of memory continue to drive the data bus immediately after the read signal is
inactivated. Therefore, a data bus collision may occur when there is consecutive memory access to
different areas or writing to a memory immediately after reading. This LSI automatically inserts
the number of idle cycles set by CSnBCR to prevent data bus collision. During idle cycles,
corresponding signals
CS0
to
CS2
,
CS4
,
CS5
/
CE1A
,
CS6
/
CE1B
,
RD
,
WE
,
CE2A
,
CE2B
, and
BS
are not asserted and
RDWR
is in the high state and the data is not driven.
CSnBCR is initialized to H'7777 7770 by a power-on reset or a manual reset.
16
17
18
19
20
21
22
23
24
25
26
27
28
29
31
30
1
1
1
0
1
1
1
0
1
1
1
0
1
1
0
1
IWRRD
IWRWS
IWRWD
IWW
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R
R/W
0
1
2
3
4
5
6
7
8
9
10
11
12
13
15
14
0
0
0
0
1
1
1
0
1
1
1
0
1
1
0
1
TYPE
MPX
BW
RDSPL
SZ
BST
IWRRS
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
R/W
Bit:
Initial value:
R/W:
Bit:
Initial value:
R/W:
Summary of Contents for SH7763
Page 2: ...Rev 1 00 Oct 01 2007 Page ii of lxvi ...
Page 122: ...Section 2 Programming Model Rev 1 00 Oct 01 2007 Page 56 of 1956 REJ09B0256 0100 ...
Page 144: ...Section 3 Instruction Set Rev 1 00 Oct 01 2007 Page 78 of 1956 REJ09B0256 0100 ...
Page 170: ...Section 4 Pipelining Rev 1 00 Oct 01 2007 Page 104 of 1956 REJ09B0256 0100 ...
Page 282: ...Section 7 Caches Rev 1 00 Oct 01 2007 Page 216 of 1956 REJ09B0256 0100 ...
Page 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Page 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Page 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Page 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Page 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
Page 752: ...Section 18 Power Down Mode Rev 1 00 Oct 01 2007 Page 686 of 1956 REJ09B0256 0100 ...
Page 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Page 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Page 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Page 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Page 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Page 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Page 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
Page 2025: ......
Page 2026: ...SH7763 Hardware Manual ...