R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 240
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)
9. Branches to the address obtained by adding offset H'0000 0400 to the contents of VBR, and
Software Processing (Data TLB Miss Exception Handling Routine): Software is responsible
for searching the external memory page table and assigning the necessary page table entry.
Software should carry out the following processing in order to find and assign the necessary page
table entry.
1. Write to PTEL the values of the PPN, PR, SZ, C, D, SH, V, and WT bits in the page table
2. When the entry to be replaced in entry replacement is specified by software, write that value to
3. Execute the LDTLB instruction and write the contents of PTEH and PTEL to the UTLB.
4. Finally, execute the exception handling return instruction (RTE), terminate the exception
6.5.6
A data TLB protection violation exception occurs when, even though a UTLB entry contains
address translation information matching the virtual address to which a data access is made, the
actual access type is not permitted by the access right specified by the PR bit. The data TLB
protection violation exception processing carried out by hardware and software is shown below.
Hardware Processing: In the event of a data TLB protection violation exception, hardware
carries out the following processing:
1. Sets the VPN of the virtual address at which the exception occurred in PTEH.
2. Sets the virtual address at which the exception occurred in TEA.
3. Sets exception code H'0A0 in the case of a read, or H'0C0 in the case of a write in EXPEVT
4. Sets the PC value indicating the address of the instruction at which the exception occurred in
5. Sets the SR contents at the time of the exception in SSR. The R15 contents at this time are
6. Sets the MD bit in SR to 1, and switches to privileged mode.
7. Sets the BL bit in SR to 1, and masks subsequent exception requests.
Rev. 2.00 May 22, 2009 Page 170 of 1982
REJ09B0256-0200
starts the data TLB miss exception handling routine.
entry recorded in the external memory address translation table.
the URC bits in MMUCR. If URC is greater than URB at this time, the value should be
changed to an appropriate value after issuing an LDTLB instruction.
handling routine, and return control to the normal flow. The RTE instruction should be issued
at least one instruction after the LDTLB instruction.
(OCBP, OCBWB: read; OCBI, MOVCA.L: write).
SPC. If the exception occurred at a delay slot, sets the PC value indicating the address of the
delayed branch instruction in SPC.
saved in SGR.
Data TLB Protection Violation Exception
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