HD6417705 Datasheet, PDF (201/739 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series

When port A or B is used, set the bus width of all areas to 8-bit or 16-bit.
For details see section 7.4.2, CSn Space Bus Control Register (CSnBCR).
7.3.3 Shadow Space
Areas 0, 2 to 4, 5A, 5B, 6A, and 6B are decoded by physical addresses A28 to A26, which
correspond to areas 000 to 110. Address bits 31 to 29 are ignored. This means that the range of
area 0 addresses, for example, is H'00000000 to H'03FFFFFF, and its corresponding shadow space
is the address space obtained by adding to it H'20000000 × n (n = 1 to 6) in areas P1 to P3.
The address range for area 7 is H'1C000000 to H'1FFFFFFF. The address space H'1C000000 +
H'20000000 × n to H'1FFFFFFF + H'20000000 × n (n = 0 to 7) corresponding to the area 7
shadow space is reserved, so do not use it.
Area P4 (H'E0000000 to H'EFFFFFFF) is the I/O area where on-chip registers are allocated. This
area has no shadow space.
7.4 Register Descriptions
The BSC has the following registers. Refer to section 24, List of Registers for the details of the
addresses of these registers and the state of registers in each operating mode.
Do not access spaces other than CS0 until the termination of the setting the memory interface.
• Common control register (CMNCR)
• Bus control register for CS0 space (CS0BCR)
• Bus control register for CS2 space (CS2BCR)
• Bus control register for CS3 space (CS3BCR)
• Bus control register for CS4 space (CS4BCR)
• Bus control register for CS5A space (CS5ABCR)
• Bus control register for CS5B space (CS5BBCR)
• Bus control register for CS6A space (CS6ABCR)
• Bus control register for CS6B space (CS6BBCR)
• Wait control register for CS0 space (CS0WCR)
• Wait control register for CS2 space (CS2WCR)
• Wait control register for CS3 space (CS3WCR)
• Wait control register for CS4 space (CS4WCR)
• Wait control register for CS5A space (CS5AWCR)
• Wait control register for CS5B space (CS5BWCR)
• Wait control register for CS6A space (CS6AWCR)
Rev. 2.00, 09/03, page 155 of 690