HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 234
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HD6417712BPV
Manufacturer Part Number
HD6417712BPV
Description
MPU 1.5/3.3V 0K PB-FREE 256-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH Ethernetr
Datasheet
1.HD6417712BPV.pdf
(980 pages)
Specifications of HD6417712BPV
Core Processor
SH-3 DSP
Core Size
32-Bit
Speed
200MHz
Connectivity
EBI/EMI, Ethernet, FIFO, SCI, SIO
Peripherals
DMA, POR, WDT
Number Of I /o
24
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
256-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:
HD6417712BPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 5 Memory Management Unit (MMU)
The MMU has the following registers. Refer the section 23, List of Registers, for the addresses
and access size for these registers.
• Page table entry register high (PTEH)
• Page table entry register low (PTEL)
• Translation table base register (TTB)
• MMU control register (MMUCR)
5.2.1
The page table entry register high (PTEH) register residing at address H'FFFFFFF0, which
consists of a virtual page number (VPN) and ASID. The VPN set is the VPN of the virtual address
at which the exception is generated in case of an MMU exception or address error exception.
When the page size is 4 kbytes, the VPN is the upper 20 bits of the virtual address, but in this case
the upper 22 bits of the virtual address are set. The VPN can also be modified by software. As the
ASID, software sets the number of the currently executing process. The VPN and ASID are
recorded in the TLB by the LDTLB instruction.
A program that modifies the ASID in PTEH should be allocated in the P1 or P2 areas.
Rev. 1.00 Dec. 27, 2005 Page 190 of 932
REJ09B0269-0100
Bit
31 to 10
9, 8
7 to 0
Page Table Entry Register High (PTEH)
Bit Name
VPN
ASID
Initial
Value
All 0
R/W
R/W
R
R/W
Description
Number of Virtual Page
Reserved
These bits are always read as 0. The write value
should always be 0.
Address space identifier
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