r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 598

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

Section 13 PCI Controller (PCIC)
For PCI memory space 2 accesses, bits 28 to 18 of a SuperHyway address are controlled by the
PCI memory bank mask register 2 (PCIMBMR2).
• PCIMBMR2 [28:18] B'1 1111 1111 11: PCI address [28:18] = SH address [28:18]
• PCIMBMR2 [28:18] B'0 1111 1111 11: PCI address [28:18] = PCIMBR2 [28], SH address [27:18]
• PCIMBMR2 [28:18] B'0 0000 0000 01: PCI address [28:18] = PCIMBR2 [28:19], SH address [18]
• PCIMBMR2 [28:18] B'0 0000 0000 00: PCI address [28:18] = PCIMBR2[28:18]
The upper three bits ([31:29]) of a SuperHyway bus address are replaced with bits 31 to 29 in PCI
memory bank register 2 (PCIMBR2).
Rev. 1.00 Oct. 01, 2007 Page 532 of 1956
REJ09B0256-0100
PCIMBMR2
SH address
SH address
PCIMBMR1
Figure 13.4 SuperHyway Bus to PCI Local Bus Address Translation
Figure 13.5 SuperHyway Bus to PCI Local Bus Address Translation
31
31
31
31
26 25
26 25
29 28
29 28
MSBAM1
MSBAM2
18 17
18 17
18 17
18 17
mask
(PCI Memory Space 1)
(PCI Memory Space 2)
mask
0
0
0
0
PCI address
PCIMBR1
PCI address
PCIMBR2
31
31
31
31
26 25
26 25
PMSBA1
29 28
29 28
PMSBA2
18 17
18 17
18 17
18 17
0
0
0
0