D6417709SF167BV Renesas Electronics America, D6417709SF167BV Datasheet - Page 111
D6417709SF167BV
Manufacturer Part Number
D6417709SF167BV
Description
IC SUPER H MPU ROMLESS 208LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.D6417709SBP167BV.pdf
(809 pages)
Specifications of D6417709SF167BV
Core Processor
SH-3
Core Size
32-Bit
Speed
167MHz
Connectivity
EBI/EMI, FIFO, IrDA, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
96
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.75 V ~ 2.05 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
208-LQFP
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:
D6417709SF167BV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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3.3.2
The TLB uses a 4-way set associative scheme, so entries must be selected by index. VPN bits 16
to 12 and ASID bits 4 to 0 in PTEH are used as the index number regardless of the page size. The
index number can be generated in two different ways depending on the setting of the IX bit in
MMUCR.
1. When IX = 0, VPN bits 16–12 alone are used as the index number
2. When IX = 1, VPN bits 16–12 are EX-ORed with ASID bits 4–0 to generate a 5-bit index
The second method is used to prevent lowered TLB efficiency that results when multiple
processes run simultaneously in the same virtual address space (multiple virtual memory) and a
specific entry is selected by generating an index number for each process. Figures 3.6 and 3.7
show the indexing schemes.
number
31
0
Virtual address
31
TLB Indexing
VPN(31−17)
Index
VPN(11−10)
17
Address array
16
Figure 3.6 TLB Indexing (IX = 1)
12
11
ASID(7−0)
0
Exclusive-OR
V
Ways 0−3
PPN(28−10) PR(1−0) SZ C
PTEH register
31
VPN
Rev. 5.00, 09/03, page 65 of 760
Data array
ASID(4 0)
10
0
D SH
7
ASID
0
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