HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 228
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
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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)
1. P0, P3, and U0 Areas
2. P1 Area
3. P2 Area
4. P4 Area
Rev. 1.00 Dec. 27, 2005 Page 184 of 932
REJ09B0269-0100
The P0, P3, and U0 areas can be address translated by the TLB and can be accessed through
the cache. If the MMU is enabled, these areas can be mapped to any physical address space in
1- or 4-kbyte page units via the TLB. If the CE bit in the cache control register (CCR1) is set
to 1 and if the corresponding cache enable bit (C bit) of the TLB entry is set to 1, access via the
cache is enabled. If the MMU is disabled, replacing the upper three bits of an address in these
areas with 0s creates the address in the corresponding physical address space. If the CE bit of
the CCR1 register is set to 1, access via the cache is enabled. When the cache is used, either
the copy-back or write-through mode is selected for write access via the WT bit in CCR1.
If these areas are mapped to the on-chip module control register area or on-chip memory area
in area 1 in the physical address space via the TLB, the C bit of the corresponding page must
be cleared to 0.
The P1 area can be accessed via the cache and cannot be address-translated by the TLB.
Whether the MMU is enabled or not, replacing the upper three bits of an address in these areas
with 0s creates the address in the corresponding physical address space. Use of the cache is
determined by the CE bit in the cache control register (CCR1). When the cache is used, either
the copy-back or write-through mode is selected for write access by the CB bit in the CCR1
register.
The P2 area cannot be accessed via the cache and cannot be address-translated by the TLB.
Whether the MMU is enabled or not, replacing the upper three bits of an address in this area
with 0s creates the address in the corresponding physical address space.
The P4 area is mapped to the on-chip I/O of this LSI. This area cannot be accessed via the
cache and cannot be address-translated by the TLB. Figure 5.4 shows the configuration of the
P4 area.
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