R8A77850AADBGV Renesas Electronics America, R8A77850AADBGV Datasheet - Page 196
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
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7. Memory Management Unit (MMU)
7.3
7.3.1
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 7.6 shows the UTLB configuration. The
UTLB consists of 64 fully-associative type entries. Figure 7.7 shows the relationship between the
page size and address format.
Legend:
• VPN: Virtual page number
• ASID: Address space identifier
Rev.1.00 Jan. 10, 2008 Page 164 of 1658
REJ09B0261-0100
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 (TLB Compatible Mode; MMUCR.ME = 0)
Unified TLB (UTLB) Configuration
Entry 0
Entry 1
Entry 2
Entry 63
Figure 7.6 UTLB Configuration (TLB Compatible Mode)
ASID[7:0]
ASID[7:0]
ASID[7:0]
ASID[7:0] VPN[31:10] V
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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