R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 302
R5S77631Y266BGV
Manufacturer Part Number
R5S77631Y266BGV
Description
IC SUPERH MPU ROMLESS 499BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R5S77631Y266BGV.pdf
(2056 pages)
Specifications of R5S77631Y266BGV
Core Processor
SH-4A
Core Size
32-Bit
Speed
266MHz
Connectivity
Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
Peripherals
DMA, LCD, POR, WDT
Number Of I /o
107
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.15 V ~ 1.35 V
Data Converters
A/D 4x10b; D/A 2x8b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
499-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5S77631Y266BGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 8 L Memory
8.5
8.5.1
In the event of simultaneous access to the same page from different buses, page conflict occurs.
Although each access is completed correctly, this kind of conflict tends to lower L memory
accessibility. Therefore it is advisable to provide all possible preventative software measures. For
example, conflicts will not occur if each bus accesses different pages.
8.5.2
In order to allocate instructions in the L memory, write an instruction to the L memory, execute
the following sequence, then branch to the rewritten instruction.
• SYNCO
• ICBI @Rn
In this case, the target for the ICBI instruction can be any address (L memory address may be
possible) within the range where no address error exception occurs, and cache hit/miss is possible.
8.5.3
The SuperHyway bus master module, such as DMAC, cannot access L memory in sleep mode.
8.6
In 32-bit address extended mode, L0SADR fields in LSA0, L1SADR fields in LSA1, L0DADR
fields in LDA0, and L1DADR fields in LDA1 are extended from 19-bit [28:10] to 22-bit [31:10].
Rev. 2.00 May 22, 2009 Page 232 of 1982
REJ09B0256-0200
Usage Notes
Page Conflict
L Memory Coherency
Sleep Mode
Note on Using 32-Bit Address Extended Mode
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