R8A77850AADBGV Renesas Electronics America, R8A77850AADBGV Datasheet - Page 538
R8A77850AADBGV
Manufacturer Part Number
R8A77850AADBGV
Description
IC SUPERH MCU 436-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
Specifications of R8A77850AADBGV
Core Processor
SH-4A
Core Size
32-Bit
Speed
600MHz
Connectivity
Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
Peripherals
DMA, POR, WDT
Number Of I /o
108
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1 V ~ 1.2 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
436-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R8A77850AADBGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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12. DDR2-SDRAM Interface (DBSC2)
Note: This register is used for initialization, when canceling self-refresh, and when canceling
Rev.1.00 Jan. 10, 2008 Page 506 of 1658
REJ09B0261-0100
Bit
2 to 0
power supply backup.
For details, refer to section 12.5.3, Initialization Sequence, section 12.5.4, Self-Refresh
Operation, and (2) Recovery from SDRAM Power Supply Backup Mode in section 12.5.10,
DDR2-SDRAM Power Supply Backup Function.
Bit Name
FREQ0
FREQ2 to
Initial
Value
000
R/W
R/W
Description
Frequency Setting Bits
These bits set the operating frequency of the data bus
in the DDR2-SDRAM.
000: up to 300 MHz (DDR2-600)
001: Reserved
010: 200 MHz (DDR2-400)
100 to 111: Setting prohibited. (If specified, correct
operation cannot be guaranteed.)
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