R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 241
![IC SUPERH MPU ROMLESS 449-BGA](/photos/12/46/124616/r8a77800anbgav_sml.jpg)
R8A77800ANBGAV
Manufacturer Part Number
R8A77800ANBGAV
Description
IC SUPERH MPU ROMLESS 449-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77800ANBGV.pdf
(1342 pages)
Specifications of R8A77800ANBGAV
Core Processor
SH-4A
Core Size
32-Bit
Speed
400MHz
Connectivity
Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
Peripherals
DMA, POR, WDT
Number Of I /o
75
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.15 V ~ 1.35 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
449-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R8A77800ANBGAV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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7.7.1
In 32-bit address extended mode, the privileged space mapping buffer (PMB) is introduced. The
PMB maps virtual addresses in the P1 or P2 area which are not translated in 29-bit address mode
to the 32-bit physical address space. In areas which are target for address translation of the TLB
(UTLB/ITLB), upper three bits in the PPN field of the UTLB or ITLB are extended and then
addresses after the TLB translation can handle the 32-bit physical addresses.
As for the cache operation, P1 area is cacheable and P2 area is non-cacheable in the case of 29-bit
address mode, but the cache operation of both P1 and P2 area are determined by the C bit and WT
bit in the PMB in the case of 32-bit address mode.
7.7.2
This LSI enters 29-bit address mode after a power-on reset. Transition is made to 32-bit address
extended mode by setting the SE bit in PASCR to 1. In 32-bit address extended mode, the MMU
operates as follows.
1. When the AT bit in MMUCR is 0, virtual addresses in the U0, P0, or P3 area become 32-bit
2. When the AT bit in MMUCR is 1, virtual addresses in the U0, P0, or P3 area are translated to
3. Regardless of the setting of the AT bit in MMUCR, bits 31 to 29 in physical addresses become
7.7.3
In 32-bit address extended mode, virtual addresses in the P1 or P2 area are translated according to
the PMB mapping information. The PMB has 16 entries and configuration of each entry is as
follows.
physical addresses. Addresses in the P1 or P2 area are translated according to the PMB
mapping information.
B'10 should be set to the upper 2 bits of virtual page number (VPN[31:30]) in the PMB in
order to indicate P1 or P2 area. The operation is not guaranteed when the value except B'10 is
set to these bits.
32-bit physical addresses according to the TLB conversion information. Addresses in the P1 or
P2 area are translated according to the PMB mapping information.
B'10 should be set to the upper 2 bits of virtual page number (VPN[31:30]) in the PMB in
order to indicate P1 or P2 area. The operation is not guaranteed when the value except B'10 is
set to these bits.
B'111 in the control register area (addresses H'FC00 0000 to H'FFFF FFFF). When the control
register area is recorded in the UTLB and accessed, B'111 should be set to PPN[31:29].
Overview of 32-Bit Address Extended Mode
Transition to 32-Bit Address Extended Mode
Privileged Space Mapping Buffer (PMB) Configuration
Section 7 Memory Management Unit (MMU)
Rev.1.00 Dec. 13, 2005 Page 189 of 1286
REJ09B0158-0100
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