r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 668

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

13. PCI Controller (PCIC)
Rev.1.00 Jan. 10, 2008 Page 638 of 1658
REJ09B0261-0100
Figure 13.8 Endian Conversion from SuperHyway Bus to PCI Local Bus
Note: PCIAddr[2]: PCI
1. Little endian
SHwy data
PCI bus data
2. Big endian
SHwy data
PCI bus data
Buffer data
Buffer data
PCI_Addr[2] = 1
PCI_Addr[2] = 1
(Byte Swapping: TBS = 1)
bus
AD[2]
MSB
31
MSB
31
A' B' C' D' A B C
A' B' C' D' A B C
A B C D
D C B A D' C' B' A'
A B C D A' B' C' D'
A B C
D
0
0
PCI_Addr[2] = 0
PCI_Addr[2] = 0
D
D
LSB
LSB