HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 185

• Manufacturer Part Number: HD6417144
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

9.4
Figure 9.2 shows the address format used by this LSI.
This chip uses 32-bit addresses:
• Bits A31 to A24 are used to select the type of space and are not output externally.
• Bits A23 and A22 are decoded and output as chip select signals (CS0 to CS7) for the
• Bits A21 to A0 are output externally.
Table 9.2 shows the address map.
corresponding areas when bits A31 to A24 are 00000000 or 00000001.
Address Map
A31 to A24
Space selection:
Not output externally; used to select the type of space
On-chip ROM space or CS space when 00000000 or 00000001 (H'00 or H'01)
Reserved (do not access) when 00000010 to 11111110 (H'02 to H'FE)
On-chip peripheral module space or on-chip RAM space when 11111111 (H'FF)
A23, A22
CS space selection:
Decoded, outputs CS0 to CS7 when A31 to A24 = 00000000 or 00000001
Figure 9.2 Address Format
A21
Rev.4.00 Mar. 27, 2008 Page 141 of 882
Output address:
Output from the address pins
9. Bus State Controller (BSC)
REJ09B0108-0400
A0