R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 454

• 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)
Figure 12.1 shows a block diagram of the DDRIF.
Rev.1.00 Dec. 13, 2005 Page 402 of 1286
REJ09B0158-0100
[Legend]
CPG:
DBK:
DDR:
DLL:
MIN:
PLL:
SCR:
SDMR:
SDR:
STR:
DDRIF
SuperHyway
SuperHyway
SuperHyway bus interface
transmitter
response
receiver
request
Clock pulse generator
DDR-SDRAM backup register
Double data rate
Delay locked loop
Memory interface mode register
Phase locked loop
SDRAM control register
SDRAM mode register
SDRAM row attribute register
SDRAM timing register
SuperHyway
SuperHyway
response
request
buffer
buffer
DDRIF (DDR-SDRAM Interface)
Figure 12.1 DDRIF Block Diagram
synchronizer
Read data
controller
Control register
Transfer
request
register
synchronizer
DDR controller
Command/write data output
SDR
From CPG
MIM
Read data register
and control register
Control register
module
controller
SDMR
SCR
Synchronizing for
internal process
STR
DBK
PLL3
DLL
DDR
I/O
DDR-VREF
BKPRST
CKE
MCS
MRAS
MCAS
MWE
BA1,BA0
MA13 to
MA 0
MDA31 to
MDA0
MDQM3 to
MDQM0
MDQS3 to
MDQS0
MCLK
MCLK