R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 277
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
- Current page: 277 of 1342
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8.7.4
Determination of an exception in a write to an SQ or transfer to external memory (PREF
instruction) is performed as follows according to whether the MMU is enabled or disabled. If an
exception occurs during a write to an SQ, the SQ contents before the write are retained. If an
exception occurs in a data transfer from an SQ to external memory, the transfer to external
memory will be aborted.
• When MMU is enabled (AT = 1 in MMUCR)
• When MMU is disabled (AT = 0 in MMUCR)
8.7.5
In privileged mode in this LSI, reading the contents of the SQs may be performed by means of a
load instruction for addresses H'FF00 1000 to H'FF00 103C in the P4 area. Only longword access
is possible.
[31:6]
[5]
[4:2]
[1:0]
Operation is in accordance with the address translation information recorded in the UTLB, and
the SQMD bit in MMUCR. Write type exception judgment is performed for writes to the SQs,
and read type exception judgment for transfer from the SQs to external memory (using a PREF
instruction). As a result, a TLB miss exception or protection violation exception is generated as
required. However, if SQ access is enabled in privileged mode only by the SQMD bit in
MMUCR, an address error will occur even if address translation is successful in user mode.
Operation is in accordance with the SQMD bit in MMUCR.
0: Privileged/user mode access possible
1: Privileged mode access possible
If the SQ area is accessed in user mode when the SQMD bit in MMUCR is set to 1, an address
error will occur.
Determination of SQ Access Exception
Reading from SQ
: H'FF00 1000
: 0/1
: LW specification
: 00
Store queue specification
0: SQ0 specification
1: SQ1 specification
Specifies longword position in SQ0/SQ1
Fixed at 0
Rev.1.00 Dec. 13, 2005 Page 225 of 1286
Section 8 Caches
REJ09B0158-0100
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