R8A77850AADBGV Renesas Electronics America, R8A77850AADBGV Datasheet - Page 133
R8A77850AADBGV
Manufacturer Part Number
R8A77850AADBGV
Description
IC SUPERH MCU 436-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
Specifications of R8A77850AADBGV
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
-40°C ~ 85°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:
R8A77850AADBGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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- Download datasheet (9Mb)
5.5.3
When the BL bit in SR is 0, general exceptions and interrupts are accepted.
When the BL bit in SR is 1 and an general exception other than a user break is generated, the
CPU's internal registers and the registers of the other modules are set to their states following a
manual reset, and the CPU branches to the same address as in a reset (H'A0000000). For the
operation in the event of a user break, see section 29, User Break Controller (UBC). If an ordinary
interrupt occurs, the interrupt request is held pending and is accepted after the BL bit has been
cleared to 0 by software. If a nonmaskable interrupt (NMI) occurs, it can be held pending or
accepted according to the setting made by software. For further details, refer to the hardware
manual of the product.
Thus, normally, SPC and SSR are saved and then the BL bit in SR is cleared to 0, to enable
multiple exception state acceptance.
5.5.4
The RTE instruction is used to return from exception handling. When the RTE instruction is
executed, the SPC contents are restored to PC and the SSR contents to SR, and the CPU returns
from the exception handling routine by branching to the SPC address. If SPC and SSR were saved
to external memory, set the BL bit in SR to 1 before restoring the SPC and SSR contents and
issuing the RTE instruction.
Exception Requests and BL Bit
Return from Exception Handling
Rev.1.00 Jan. 10, 2008 Page 101 of 1658
5. Exception Handling
REJ09B0261-0100
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