R8A77850ADBGV Renesas Electronics America, R8A77850ADBGV Datasheet - Page 529
R8A77850ADBGV
Manufacturer Part Number
R8A77850ADBGV
Description
IC SUPERH MPU ROMLESS 436-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
Specifications of R8A77850ADBGV
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:
R8A77850ADBGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Company:
Part Number:
R8A77850ADBGV#RD0Z
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Bit
11 to 8
7 to 4
Bit Name
RDWR3 to
RDWR0
⎯
Initial
Value
0011
All 0
R/W
R/W
R
Description
These bits set the READ-WRITE command minimum
interval constraint. These bits should be set according
to the SDRAM specifications. The number of cycles is
the number of DDR clock cycles.
0000: Setting prohibit (If specified, correct operation
0010: Setting prohibit (If specified, correct operation
0011: 4 cycles
0100: 5 cycles
1000: 9 cycles
1001: Setting prohibit (If specified, correct operation
1111: Setting prohibit (If specified, correct operation
Reserved
These bits are always read as 0. The write value should
always be 0.
Operation when a value other than 0 is written is not
guaranteed.
READ-WRITE Command Minimum Interval Setting Bits
:
:
:
cannot be guaranteed.)
cannot be guaranteed.)
cannot be guaranteed.)
cannot be guaranteed.)
Rev.1.00 Jan. 10, 2008 Page 497 of 1658
12. DDR2-SDRAM Interface (DBSC2)
REJ09B0261-0100
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