R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 458

• Manufacturer Part Number: R8A77800ANBGAV
• Description: IC SUPERH MPU ROMLESS 449-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77800ANBGAV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 400MHz
• Connectivity: Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
• Peripherals: DMA, POR, WDT
• Number Of I /o: 75
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 449-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 12 DDR-SDRAM Interface (DDRIF)
12.3.3
The DDRIF supports both big endian mode, where the address of the highest order byte is 0, and
little endian mode, where the address of the lowest order byte is 0. These modes can be switched
by changing the level on an external pin (MODE5) and then generating a power-on reset. Note
that wraparound in memory data access is on 32-byte boundaries.
Table 12.2 Access and Data Alignment in Little Endian Mode
Rev.1.00 Dec. 13, 2005 Page 406 of 1286
REJ09B0158-0100
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
Longword access at address 4
Quadword access at address 0
(first round: from address 0)
Quadword access at address 0
(second round: from address 4)
16-byte access at address 0
(first round: from address 4)
16-byte access at address 0
(second round: from address 0)
16-byte access at address 0
(third round: from address 12 (H'C))
16-byte access at address 0
(fourth round: from address 8)
Data Alignment
MD31 to MD24 MD23 to MD16 MD15 to MD8
Bit 7 to 0
Bit 7 to 0
Bit 15 to 8
Bit 15 to 8
Bit 31 to 24
Bit 31 to 24
Bit 31 to 24
Bit 63 to 56
Bit 31 to 24
Bit 31 to 24
Bit 31 to 24
Bit 31 to 24
Bit 7 to 0
Bit 7 to 0
Bit 7 to 0
Bit 7 to 0
Bit 23 to 16
Bit 23 to 16
Bit 23 to 16
Bit 55 to 48
Bit 23 to 16
Bit 23 to 16
Bit 23 to 16
Bit 23 to 16
Bit 7 to 0
Bit 7 to 0
Bit 15 to 8
Bit 15 to 8
Bit 15 to 8
Bit 15 to 8
Bit 15 to 8
Bit 47 to 40
Bit 15 to 8
Bit 15 to 8
Bit 15 to 8
Bit 15 to 8
MD7 to MD0
Bit 7 to 0
Bit 7 to 0
Bit 7 to 0
Bit 7 to 0
Bit 7 to 0
Bit 7 to 0
Bit 7 to 0
Bit 39 to 32
Bit 7 to 0
Bit 7 to 0
Bit 7 to 0
Bit 7 to 0