HD6437101 RENESAS [Renesas Technology Corp], HD6437101 Datasheet - Page 130

• Manufacturer Part Number: HD6437101
• Description: 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 7 Bus State Controller (BSC)
7.4
Figure 7.2 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) for the corresponding
• A17 to A0 are output externally. A21 to A18 are not output externally.
Table 7.2 shows the address map.
Rev.1.00 Sep. 18, 2008 Page 96 of 522
REJ09B0069-0100
areas when bits A31 to A24 are 00000000.
A31 to A24
Address Map
Space selection:
Not output externally; used to select the type of space
On-chip ROM space or CS0 space when 00000000 (H'00)
Reserved (do not access) when 00000001 to 11111110 (H'01 to H'FE)
On-chip peripheral module space or on-chip RAM space when 11111111 (H'FF)
A23, A22
CS space selection:
Decoded, outputs
Figure 7.2 Address Format
A21 to A18
when A31 to A24 = 00000000
A17
Output address:
Output from the address pins
A0