R8A77850ADBGV#RD0Z Renesas Electronics America, R8A77850ADBGV#RD0Z Datasheet - Page 214
R8A77850ADBGV#RD0Z
Manufacturer Part Number
R8A77850ADBGV#RD0Z
Description
IC SUPERH MPU ROMLESS 436-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
Specifications of R8A77850ADBGV#RD0Z
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
Part Number:
R8A77850ADBGV#RD0ZR8A77850ADBGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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7. Memory Management Unit (MMU)
7.6
There are seven MMU exceptions: instruction TLB multiple hit exception, instruction TLB miss
exception, instruction TLB protection violation exception, data TLB multiple hit exception, data
TLB miss exception, data TLB protection violation exception, and initial page write exception.
Refer to figures 7.9, 7.10, 7.14, 7.15, and section 5, Exception Handling for the conditions under
which each of these exceptions occurs.
7.6.1
An instruction TLB multiple hit exception occurs when more than one ITLB entry matches the
virtual address to which an instruction access has been made. If multiple hits occur when the
UTLB is searched by hardware in hardware ITLB miss handling, an instruction TLB multiple hit
exception will result.
When an instruction TLB multiple hit exception occurs, a reset is executed and cache coherency is
not guaranteed.
(1)
In the event of an instruction TLB multiple hit exception, hardware carries out the following
processing:
1. Sets the virtual address at which the exception occurred in TEA.
2. Sets exception code H'140 in EXPEVT.
3. Branches to the reset handling routine (H'A000 0000).
(2)
The ITLB entries which caused the multiple hit exception are checked in the reset handling
routine. This exception is intended for use in program debugging, and should not normally be
generated.
Rev.1.00 Jan. 10, 2008 Page 182 of 1658
REJ09B0261-0100
Hardware Processing
Software Processing (Reset Routine)
MMU Exceptions
Instruction TLB Multiple Hit Exception
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