D6417729RHF200BV Renesas Electronics America, D6417729RHF200BV Datasheet - Page 155
![IC SUPER H MPU ROMLESS 208QFP](/photos/12/31/123145/d6417729rhf200bv_sml.jpg)
D6417729RHF200BV
Manufacturer Part Number
D6417729RHF200BV
Description
IC SUPER H MPU ROMLESS 208QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.D6417729RF133BV.pdf
(857 pages)
Specifications of D6417729RHF200BV
Core Processor
SH-3 DSP
Core Size
32-Bit
Speed
200MHz
Connectivity
EBI/EMI, FIFO, IrDA, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
96
Program Memory Type
ROMless
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.85 V ~ 2.15 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
208-QFP Exposed Pad, 208-eQFP, 208-HQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D6417729RHF200BV
Manufacturer:
EVERLIGHT
Quantity:
1 000
Company:
Part Number:
D6417729RHF200BV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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MMUCR
31
9
0
0
SV 0 0 RC 0 TF IX AT
Way selection
Index
PTEL register
PTEH register
31
17
12
10 8
0
3129 28
10
0
VPN
VPN
0
ASID
000
PPN
0
V 0 PR SZ C D SH 0
Write
Write
Ways 0 to 3
VPN(31−17)
VPN(11−10)
ASID(7−0)
V
PPN(28−10) PR(1−0) SZ C
D SH
0
31
Address array
Data array
Figure 3.9 Operation of LDTLB Instruction
3.4.4
Avoiding Synonym Problems
When a 1-kbyte page is recorded in a TLB entry, a synonym problem may arise. If a number of
virtual addresses are mapped onto a single physical address, the same physical address data will be
recorded in a number of cache entries, and it will not be possible to guarantee data congruity. The
reason why this problem only occurs when using a 1-kbyte page is explained below with reference
to figure 3.10.
To achieve high-speed operation of the SH7729R cache, an index number is created using virtual
address bits 11–4. When a 4-kbyte page is used, virtual address bits 11–4 are included in the
offset, and since they are not subject to address translation, they are the same as physical address
bits 11–4. In cache-based address comparison and recording in the address array, since the cache
tag address is a physical address, physical address bits 28–10 are recorded.
When a 1-kbyte page is used, also, a cache index number is created using virtual address bits 11-4.
However, in case of a 1-kbyte page, virtual address bits 11 and 10 are subject to address
translation and therefore may not be the same as physical address bits 11 and 10. Consequently,
the physical address is recorded in a different entry from that of the index number indicated by the
physical address in the cache address array.
Rev. 5.0, 09/03, page 107 of 806
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