
Section 12 Bus State Controller (BSC)
Rev. 4.00 Sep. 14, 2005 Page 285 of 982
REJ09B0023-0400
Bit Bit
Name
Initial
Value R/W Description
10
9
BSZ1
BSZ0
1
*
1
*
R/W
R/W
Data Bus Size
Specify the data bus sizes of spaces.
The data bus sizes of areas 2, 3, 4 and 5A are shown
below.
00: Reserved (setting prohibited)
01: 8-bit size
10: 16-bit size
11: 32-bit size
For MPX-I/O, selects bus width by address
Notes: 1. If area 5B is specified as MPX-I/O, the bus
width can be specified as 8 bits or 16 bits by
the address according to the SZSEL bit in
CS5BWCR by specifying these bits to 11.
2. The data bus width for area 0 is specified by
the external pin. The BSZ1 and BSZ0 bit
settings in the CS0BCR register are
ignored.
3. If area 6 is specified as burst MPX-I/O, the
bus width can be specified as 32 bits only.
4. If area 2 or area 3 is specified as SDRAM
space, the bus width can be specified as
either 16 bits or 32 bits.
8 to 0
All
0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
Note:
*
The CS0CR samples the external pins (MD3) that specify the bus width at power-on
reset.
Содержание HD6417641
Страница 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Страница 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Страница 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Страница 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
Страница 28: ...Rev 4 00 Sep 14 2005 Page xxviii of l...
Страница 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Страница 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Страница 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Страница 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Страница 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Страница 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Страница 500: ...Section 13 Direct Memory Access Controller DMAC Rev 4 00 Sep 14 2005 Page 450 of 982 REJ09B0023 0400...
Страница 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Страница 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Страница 734: ...Section 18 Multi Function Timer Pulse Unit MTU Rev 4 00 Sep 14 2005 Page 684 of 982 REJ09B0023 0400...
Страница 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Страница 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Страница 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Страница 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Страница 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Страница 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
Страница 1035: ......
Страница 1036: ...SH7641 Hardware Manual...