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Bit 6—CS2 Space Long Size Specification (A2LG): Specifies the CS2 space bus size.
Bit 6 (A2LG)
Description
0
According to the A2SZ bit value (initial value)
1
Longword (32 bit) size
•
Bit 5—CS1 Space Long Size Specification (A1LG): Specifies the CS1 space bus size.
Bit 5 (A1LG)
Description
0
According to the A1SZ bit value (initial value)
1
Longword (32 bit) size
•
Bit 4—CS0 Space Long Size Specification (A0LG): Specifies the CS0 space bus size.
Bit 4 (A0LG)
Description
0
According to the A0SZ bit value (initial value)
1
Longword (32 bit) size
Note:
A0LG is effective only in on-chip ROM effective mode. When in on-chip ROM ineffective
mode, the CS0 space bus size is specified by the mode pin.
•
Bit 3—CS3 Space Size Specification (A3SZ): Specifies the CS3 space bus size when A3LG =
0. This is effective only when CS3 space is ordinary space. When CS3 space is an address/data
multiplex I/O space, bus size is decided by the A14 bit.
Bit 3 (A3SZ)
Description
0
Byte (8 bit) size
1
Word (16 bit) size (initial value)
Note:
This bit is ignored when A3LG = 1; CS3 space bus size becomes longword (32 bit) (for
ordinary space).
•
Bit 2—CS2 Space Size Specification (A2SZ): Specifies the CS2 space bus size when A2LG =
0.
Bit 2 (A2SZ)
Description
0
Byte (8 bit) size
1
Word (16 bit) size (initial value)
Note:
This bit is ignored when A2LG = 1; CS2 space bus size becomes longword (32 bit).
Summary of Contents for SH7041 Series
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Page 923: ...SH7040 SH7041 SH7042 SH7043 SH7044 SH7045 Group Hardware Manual REJ09B0044 0600O ...