HD6417751RF240V Renesas Electronics America, HD6417751RF240V Datasheet - Page 179

• Manufacturer Part Number: HD6417751RF240V
• Description: MPU 1.5/3.3V 0K PB-FREE 256-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417751RF240V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 240MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-QFP Exposed Pad, 256-eQFP, 256-HQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

• VPN: Virtual page number
• ASID: Address space identifier
• 1-Kbyte page
• 4-Kbyte page
• 64-Kbyte page
• 1-Mbyte page
For 1-Kbyte page: upper 22 bits of virtual address
For 4-Kbyte page: upper 20 bits of virtual address
For 64-Kbyte page: upper 16 bits of virtual address
For 1-Mbyte page: upper 12 bits of virtual address
Indicates the process that can access a virtual page.
In single virtual memory mode and user mode, or in multiple virtual memory mode, if the SH
bit is 0, this identifier is compared with the ASID in PTEH when address comparison is
performed.
31
31
31
31
VPN
VPN
Figure 3.8 Relationship between Page Size and Address Format
VPN
VPN
20 19
Virtual address
Virtual address
Virtual address
Virtual address
16 15
12 11
10 9
Offset
Offset
Offset
Offset
0
0
0
0
28
28
28
28
Rev.4.00 Oct. 10, 2008 Page 79 of 1122
3. Memory Management Unit (MMU)
PPN
PPN
PPN
PPN
Physical address
Physical address
Physical address
Physical address
20 19
16 15
12 11
REJ09B0370-0400
10 9
Offset
Offset
Offset
Offset
0
0
0
0