R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 231

• Manufacturer Part Number: R5S77631Y266BGV
• Description: IC SUPERH MPU ROMLESS 499BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R5S77631Y266BGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 266MHz
• Connectivity: Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 107
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 499-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Figure 6.10 shows a flowchart of a memory access using the ITLB.
Internal resource access
VA is
in P4 area
Hardware ITLB
miss handling
Record in ITLB
Figure 6.10 Flowchart of Memory Access Using ITLB
VA is
in P2 area
0
Instruction TLB protection
Yes
Instruction access to virtual address (VA)
violation exception
Instruction TLB
miss exception
Search UTLB
CCR.ICE?
Match?
(Non-cacheable)
Memory access
No
1
VA is
in P1 area
No
0
No
multiple hit exception
and CCR.ICE = 1
Instruction TLB
Cache access
VPNs match
and V = 1
Section 6 Memory Management Unit (MMU)
1
C = 1
PR?
Rev. 2.00 May 22, 2009 Page 161 of 1982
Yes
Yes
0 (User)
VA is in P0, U0,
or P3 area
No
No
No
No
and (MMUCR.SV = 0 or
ASIDs match, and
MMUCR.AT = 1
entry matches
VPNs match,
SR.MD = 0)
SR.MD?
Only one
SH = 0
V = 1
REJ09B0256-0200
Yes
Yes
1 (Privileged)
Yes
Yes