R8A77850ANBGV Renesas Electronics America, R8A77850ANBGV Datasheet - Page 199

• 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: -

7.3.2
The ITLB is used to translate a virtual address to a physical address in an instruction access.
Information in the address translation table located in the UTLB is cached into the ITLB. Figure
7.8 shows the ITLB configuration. The ITLB consists of four fully-associative type entries.
7.3.3
Figure 7.9 shows a flowchart of a memory access using the UTLB.
Instruction TLB (ITLB) Configuration
Address Translation Method
Notes: 1. The D and WT bits are not supported.
Entry 0
Entry 1
Entry 2
Entry 3
Figure 7.8 ITLB Configuration (TLB Compatible Mode)
2. There is only one PR bit, corresponding to the upper bit of the PR bits in the UTLB.
ASID[7:0]
ASID[7:0]
ASID[7:0]
ASID[7:0]
VPN[31:10]
VPN[31:10]
VPN[31:10]
VPN[31:10]
V
V
V
V
PPN[28:10]
PPN[28:10]
PPN[28:10]
PPN[28:10]
SZ[1:0]
SZ[1:0]
SZ[1:0]
SZ[1:0]
Rev.1.00 Jan. 10, 2008 Page 167 of 1658
SH
SH
SH
SH
7. Memory Management Unit (MMU)
C
C
C
C
PR
PR
PR
PR
REJ09B0261-0100