R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 484

• Manufacturer Part Number: R5S77631Y266BGV
• Description: IC SUPERH MPU ROMLESS 499BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R5S77631Y266BGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 266MHz
• Connectivity: Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 107
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 499-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 12 DDR-SDRAM Interface (DDRIF)
12.3
12.3.1
Data Alignment in DDR-SDRAM: The DDRIF supports both big endian mode where an address
of the upper byte is 0 and little endian mode where an address of the lower byte is 0. These modes
can be switched by using external pins at a power-on reset.
The data alignment shown in the following tables is used when access is made from the peripheral
modules. The data alignment in little endian mode differs from that in the physical memory map
of the DDR-SDRAM.
Table 12.2 Access and Data Alignment in Little Endian Mode (External Bus Width is 32
Rev. 2.00 May 22, 2009 Page 414 of 1982
REJ09B0256-0200
Byte access at address 0
Byte access at address 1
Byte access at address 2
Byte access at address 3
Byte access at address 4
Byte access at address 5
Byte access at address 6
Byte access at address 7
Word access at address 0
Word access at address 2
Word access at address 4
Word access at address 6
Longword access at address 0 Data 31 to 24
Longword access at address 4 Data 31 to 24
Quadword access at address 0
(first time: address 0)
Quadword access at address 0
(second time: address 4)
Data Conversion
Data Alignment
Bits)
M_D31 to M_D24 M_D23 to M_D16 M_D15 to M_D8
Data 7 to 0
Data 7 to 0
Data 15 to 8
Data 15 to 8
Data 31 to 24
Data 63 to 56
Data 7 to 0
Data 7 to 0
Data 7 to 0
Data 7 to 0
Data 23 to 16
Data 23 to 16
Data 23 to 16
Data 55 to 48
Data 7 to 0
Data 7 to 0
Data 15 to 8
Data 15 to 8
Data 15 to 8
Data 15 to 8
Data 15 to 8
Data 47 to 40
M_D7 to M_D0
Data 7 to 0
Data 7 to 0
Data 7 to 0
Data 7 to 0
Data 7 to 0
Data 7 to 0
Data 7 to 0
Data 39 to 32