HD6417708SF60V Renesas Electronics America, HD6417708SF60V Datasheet - Page 81

• Manufacturer Part Number: HD6417708SF60V
• Description: IC SUPERH MPU ROMLESS 208LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417708SF60V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 60MHz
• Connectivity: EBI/EMI, SCI, SmartCard
• Peripherals: POR, WDT
• Number Of I /o: 8
• Program Memory Type: ROMless
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Ram Size: -
• Program Memory Size: -
• Data Converters: -

VPN (31–17) VPN (11–10) ASID SH SZ V
ASID: Address space identifier. Indicates the process that can access a virtual page. In single
VPN: Virtual page number. Top 22 bits of virtual address for a 1-kbyte page, or top 20 bits of virtual
PPN: Physical page number. Top 22 bits of physical address. PPN bits 11-10 are not used in the
SH: Share status bit
PR: Protection key field. 2-bit field encoded to define the access rights to the page.
SZ: Page size bit
(15)
C: Cacheable bit. Indicates whether the page is cacheable.
D: Dirty bit. Indicates whether the page has been written to.
V: Valid bit. Indicates whether entry is valid.
address for a 4-kbyte page. Since VPN bits 16-12 are used as the index number, they are
not stored in the TLB entry.
virtual memory mode and user mode, or in multiple virtual memory mode, if the SH bit is 0,
the address is compared with the ASID in PTEH when address comparison is performed.
0 = Page not shared between processes
1 = Page shared between processes
0 = 1-kbyte page
1 = 4-kbyte page
0 = Invalid
1 = Valid
Cleared to 0 by a power-on reset. Not affected by a manual reset.
case of a 4-kbyte page. Attention must be paid to the synonym problem in the case of a
1-kbyte page (see section 3.4.4).
Set the most significant bit to 0.
00: Reading only is possible in privileged mode.
01: Reading/writing is possible in privileged mode.
10: Reading only is possible in privileged/user mode.
11: Reading/writing is possible in privileged/user mode.
0: Non-cacheable
1: Cacheable
0 = Not written to
1 = Written to
31
31
Figure 3.5 Virtual Address and TLB Structure
(2)
Virtual address (1-kbyte page)
Virtual address (4-kbyte page)
VPN
(8)
VPN
(1)
TLB entry
(1)
(1)
12
10
11
9
Offset
PPN
(22)
Offset
0
0
PR
(2)
(1) (1)
C D
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