R8A77850ANBGV Renesas Electronics America, R8A77850ANBGV Datasheet - Page 201

• Manufacturer Part Number: R8A77850ANBGV
• Description: IC SUPERH MPU ROMLESS 436-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77850ANBGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 600MHz
• Connectivity: Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
• Peripherals: DMA, POR, WDT
• Number Of I /o: 108
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1 V ~ 1.2 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 436-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Figure 7.10 shows a flowchart of a memory access using the ITLB.
Internal resource access
Figure 7.10 Flowchart of Memory Access Using ITLB (TLB Compatible Mode)
VA is
in P4 area
Hardware ITLB
miss handling
Record in ITLB
VA is
in P2 area
Instruction TLB protection
0
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
1
C = 1
PR?
Rev.1.00 Jan. 10, 2008 Page 169 of 1658
Yes
Yes
0 (User)
7. Memory Management Unit (MMU)
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
REJ09B0261-0100
Yes
1 (Privileged)
Yes
Yes
Yes