r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 498

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

12. DDR2-SDRAM Interface (DBSC2)
Table 12.4 Positions of Valid Data for Access with Burst Length of 4, when the External
Rev.1.00 Jan. 10, 2008 Page 468 of 1658
REJ09B0261-0100
(1) Little Endian
Byte access
(address 8n + 0,1)
Byte access
(address 8n + 2,3)
Byte access
(address 8n + 4,5)
Byte access
(address 8n + 6,7)
Word access
(address 8n + 0)
Word access
(address 8n + 2)
Word access
(address 8n + 4)
Word access
(address 8n + 6)
Longword access
(address 8n + 0)
Longword access
(address 8n + 4)
Quadword access
(address 8n + 0)
Data Bus Width Is Set to 16 Bits
First Access
Invalid
Invalid
Invalid
Valid
Invalid
Invalid
Invalid
Valid
Invalid
Valid
Valid
Second Access
Invalid
Invalid
Valid
Invalid
Invalid
Invalid
Valid
Invalid
Invalid
Valid
Valid
Third Access
Invalid
Valid
Invalid
Invalid
Invalid
Valid
Invalid
Invalid
Valid
Invalid
Valid
Fourth Access
Valid
Invalid
Invalid
Invalid
Valid
Invalid
Invalid
Invalid
Valid
Invalid
Valid