R8A77850ADBGV Renesas Electronics America, R8A77850ADBGV Datasheet - Page 270
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
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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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8. Caches
8.7
This LSI supports two 32-byte store queues (SQs) to perform high-speed writes to external
memory.
8.7.1
There are two 32-byte store queues, SQ0 and SQ1, as shown in figure 8.9. These two store queues
can be set independently.
8.7.2
A write to the SQs can be performed using a store instruction for addresses H'E000 0000 to
H'E3FF FFFC in the P4 area. A longword or quadword access size can be used. The meanings of
the address bits are as follows:
Rev.1.00 Jan. 10, 2008 Page 238 of 1658
REJ09B0261-0100
[31:26]
[25:6]
[5]
[4:2]
[1:0]
Store Queues
SQ Configuration
Writing to SQ
: 111000
: Don't care
: 0/1
: LW specification
: 00
SQ0
SQ1
SQ0[0]
SQ1[0]
4 byte
Figure 8.9 Store Queue Configuration
SQ0[1]
SQ1[1]
4 byte
Store queue specification
Used for external memory transfer/access right
0: SQ0 specification
1: SQ1 specification
Specifies longword position in SQ0/SQ1
Fixed at 0
SQ0[2]
SQ1[2]
4 byte
SQ0[3]
SQ1[3]
4 byte
SQ0[4]
SQ1[4]
4 byte
SQ0[5]
SQ1[5]
4 byte
SQ0[6]
SQ1[6]
4 byte
SQ0[7]
SQ1[7]
4 byte
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