R8A77850AADBGV Renesas Electronics America, R8A77850AADBGV Datasheet - Page 263
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
- Current page: 263 of 1694
- Download datasheet (9Mb)
8.5.2
This LSI supports a prefetch instruction to reduce the cache fill penalty incurred as the result of a
cache miss. If it is known that a cache miss will result from a read or write operation, it is possible
to fill the cache with data beforehand by means of the prefetch instruction to prevent a cache miss
due to the read or write operation, and so improve software performance. If a prefetch instruction
is executed for data already held in the cache, or if the prefetch address results in a UTLB miss or
a protection violation, the result is no operation, and an exception is not generated. Details of the
prefetch instruction are given in section 11, Instruction Descriptions of the SH-4A Extended
Functions Software Manual.
• Prefetch instruction (OC)
• Prefetch instruction (IC)
the dirty bit to 0. This operation is only executable in privileged mode, and an address error
exception occurs in user mode. TLB-related exceptions do not occur.
Do not execute this instruction to invalidate the memory-mapped array areas and control
register areas for which Rn[31:24] is not H'F4, and their reserved areas (H'F0 to H'F3, H'F5 to
H'FF).
Prefetch Operation
: PREF @Rn
: PREFI @Rn
Rev.1.00 Jan. 10, 2008 Page 231 of 1658
REJ09B0261-0100
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