R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 226
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
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5S77631Y266BGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 6 Memory Management Unit (MMU)
6.3
6.3.1
The UTLB is used for the following two purposes:
1. To translate a virtual address to a physical address in a data access
2. As a table of address translation information to be recorded in the ITLB in the event of an
The UTLB is so called because of its use for the above two purposes. Information in the address
translation table located in external memory is cached into the UTLB. The address translation
table contains virtual page numbers and address space identifiers, and corresponding physical page
numbers and page management information. Figure 6.6 shows the UTLB configuration. The
UTLB consists of 64 fully-associative type entries. Figure 6.7 shows the relationship between the
page size and address format.
[Legend]
• VPN: Virtual page number
• ASID: Address space identifier
Rev. 2.00 May 22, 2009 Page 156 of 1982
REJ09B0256-0200
ITLB miss
For 1-Kbyte page: Upper 22 bits of virtual address
For 4-Kbyte page: Upper 20 bits of virtual address
For 64-Kbyte page: Upper 16 bits of virtual address
For 1-Mbyte page: Upper 12 bits of virtual address
Indicates the process that can access a virtual page.
In single virtual memory mode and user mode, or in multiple virtual memory mode, if the SH
bit is 0, this identifier is compared with the ASID in PTEH when address comparison is
performed.
TLB Functions
Unified TLB (UTLB) Configuration
Entry 0
Entry 1
Entry 2
Entry 63
ASID [7:0]
ASID [7:0]
ASID [7:0]
ASID [7:0] VPN [31:10] V
Figure 6.6 UTLB Configuration
VPN [31:10]
VPN [31:10]
VPN [31:10]
V
V
V
PPN [28:10]
PPN [28:10]
PPN [28:10]
PPN [28:10] SZ [1:0] SH C PR [1:0]
SZ [1:0]
SZ [1:0]
SZ [1:0]
SH
SH
SH
C
C
C
PR [1:0]
PR [1:0]
PR [1:0]
D
D
D
D WT
WT
WT
WT
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