Section 7 Bus State Controller (BSC)
Rev. 2.00 Mar 09, 2006 page 260 of 906
REJ09B0292-0200
7.2.2
Bus Control Register 2 (BCR2)
Bit:
15
14
13
12
11
10
9
8
—
—
—
—
—
—
A4SZ1
A4SZ0
Initial value:
0
0
0
0
0
0
0
0
R/W:
R
R
R
R
R
R
R/W
R/W
Bit:
7
6
5
4
3
2
1
0
A3SZ1
A3SZ0
A2SZ1
A2SZ0
A1SZ1
A1SZ0
—
—
Initial value:
1
1
1
1
1
1
0
0
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
R
R
Initialize BCR2 after a power-on reset and do not write to it thereafter. When writing to it, write
the same values as those the bits are initialized to. Do not access any space other than CS0 until
the register initialization ends.
The CS0 space bus size specification is set with pins MD4 and MD3. See section 3.3, CS0 Space
Bus Width of the CS0 Area, for details.
Bits 15 to 10—Reserved: These bits are always read as 0. The write value should always be 0.
Bits 9 and 8—Bus Size Specification for Area 4 (CS4) (A4SZ1, A4SZ0)
Bit 9: A4SZ1
Bit 8: A4SZ0
Description
0
0
Longword (32-bit) size
(Initial value)
1
Byte (8-bit) size
1
0
Word (16-bit) size
1
Longword (32-bit) size
Bits 7 and 6—Bus Size Specification for Area 3 (CS3) (A3SZ1, A3SZ0). Effective only when
ordinary space is set.
Bit 7: A3SZ1
Bit 6: A3SZ0
Description
0
0
Reserved (do not set)
1
Byte (8-bit) size
1
0
Word (16-bit) size
1
Longword (32-bit) size
(Initial value)
Summary of Contents for SH7616
Page 10: ...Rev 2 00 Mar 09 2006 page x of xxvi ...
Page 132: ...Section 2 CPU Rev 2 00 Mar 09 2006 page 106 of 906 REJ09B0292 0200 ...
Page 568: ...Section 12 16 Bit Free Running Timer FRT Rev 2 00 Mar 09 2006 page 542 of 906 REJ09B0292 0200 ...
Page 582: ...Section 13 Watchdog Timer WDT Rev 2 00 Mar 09 2006 page 556 of 906 REJ09B0292 0200 ...
Page 706: ...Section 16 Serial I O SIO Rev 2 00 Mar 09 2006 page 680 of 906 REJ09B0292 0200 ...
Page 820: ...Section 19 Pin Function Controller PFC Rev 2 00 Mar 09 2006 page 794 of 906 REJ09B0292 0200 ...
Page 932: ...Appendix D Package Dimensions Rev 2 00 Mar 09 2006 page 906 of 906 REJ09B0292 0200 ...
Page 935: ...SH7616 Hardware Manual ...