HD6417708RF100A Renesas Electronics America, HD6417708RF100A Datasheet - Page 213
HD6417708RF100A
Manufacturer Part Number
HD6417708RF100A
Description
IC SUPERH MPU ROMLESS 144LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.HD6417708SF60V.pdf
(635 pages)
Specifications of HD6417708RF100A
Core Processor
SH-2
Core Size
32-Bit
Speed
100MHz
Connectivity
EBI/EMI, SCI, SmartCard
Peripherals
POR, WDT
Number Of I /o
8
Program Memory Type
ROMless
Voltage - Supply (vcc/vdd)
3.15 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
144-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Ram Size
-
Program Memory Size
-
Data Converters
-
Available stocks
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HD6417708RF100AV
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10.1.5
Space Allocation: The SH7708 Series architecture provides for a 32-bit virtual address space. The
virtual space is divided into five areas by the value of the upper bits of the address. The physical
space is divided into eight areas with a 29-bit address space.
Virtual space can be allocated at will to physical spaces using a memory management unit
(MMU). For details, refer to section 3, Memory Management Unit, which describes area
allocation for physical spaces.
As shown in table 10.4, the SH7708 Series can be connected directly to seven areas of memory/PC
card, and it outputs chip select signals (CS0–CS6, CE2A, CE2B) for each of them. CS0 is asserted
during area 0 access; CS6 is asserted during area 6 access. When DRAM, synchronous DRAM, or
pseudo-SRAM is connected to area 2 or 3, signals such as RAS, CAS, RD/WR, and DQM are also
asserted. When PCMCIA interface is selected in area 5 or 6, in addition to CS5/CS6, CE2A/CE2B
are asserted for the corresponding bytes accessed.
For virtual address spaces P0 and P3, when the memory management unit (MMU) is on, any
physical address can be generated by the MMU for a virtual address. Consequently, figure 10.2
can be applied when the MMU is off, and when the MMU is on and the physical addresses
corresponding to virtual addresses are identical except for the top 3 bits. When virtual addresses
are translated to arbitrary physical addresses, refer to table 10.3, Physical Address Space Map.
Figure 10.2 Correspondence between Virtual Address Space and Physical Address Space
H'C0000000
H'A0000000
H'E0000000
H'00000000
H'20000000
H'40000000
H'60000000
H'80000000
Area Overview
Virtual address space
P0, U0
P1
P2
P3
P4
Physical address space
Reserved area
Area 0 (CS0)
Area 1 (CS1)
Area 2 (CS2)
Area 3 (CS3)
Area 4 (CS4)
Area 5 (CS5)
Area 6 (CS6)
H'00000000
H'04000000
H'08000000
H'0C000000
H'10000000
H'14000000
H'18000000
193
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