R8A77850ANBGV Renesas Electronics America, R8A77850ANBGV Datasheet - Page 272
![IC SUPERH MPU ROMLESS 436-BGA](/photos/28/62/286211/436-bfbga_sml.jpg)
R8A77850ANBGV
Manufacturer Part Number
R8A77850ANBGV
Description
IC SUPERH MPU ROMLESS 436-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R8A77850ANBGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 272 of 1694
- Download datasheet (9Mb)
8. Caches
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.
Rev.1.00 Jan. 10, 2008 Page 240 of 1658
REJ09B0261-0100
[31:6]
[5]
[4:2]
[1:0]
Physical address bits [4:0] are always fixed at 0 since burst transfer starts at a 32-byte
boundary.
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
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