HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 324

• Manufacturer Part Number: HD6417641
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 12 Bus State Controller (BSC)
12.3.2
Areas 0, 2 to 4, 5A, 5B, 6A, and 6B are decoded by 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 between P0 and P3 obtained by adding to it H'20000000 × n (n = 1 to 6). The address range
for area 7 is H'1C000000 to H'1FFFFFFF. The address space H'1C000000 + H'20000000 × n–
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 an I/O area and is assigned for internal register
addresses.
Rev. 4.00 Sep. 14, 2005 Page 274 of 982
REJ09B0023-0400
Shadow Area
H'C0000000
H'A0000000
H'E0000000
H'00000000
H'20000000
H'40000000
H'60000000
H'80000000
Address Spaces by A31 to A0
P0
P1
P2
P3
P4
Figure 12.2 Address Space
Address spacesby A28 to A0
Area 1 (Internal I/O)
Area 7 (Reserved)
Area 5A (CS5A)
Area 5B (CS5B)
Area 6A (CS6A)
Area 6B (CS6B)
Area 0 (CS0)
Area 2 (CS2)
Area 3 (CS3)
Area 4 (CS4)