R8A77850AADBGV Renesas Electronics America, R8A77850AADBGV Datasheet - Page 298
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
- Current page: 298 of 1694
- Download datasheet (9Mb)
10. Interrupt Controller (INTC)
10.1.1
The basic flow of exception handling for interrupts is as follows.
In interrupt exception handling, the contents of the program counter (PC), status register (SR), and
general register 15 (R15) are saved in the saved program counter (SPC), saved status register
(SSR), and saved general register15 (SGR), and the CPU starts execution of the interrupt
exception handling routine at the corresponding vector address. An interrupt exception handling
routine is a program written by the user to handle a specific exception. The interrupt exception
handling routine is terminated and control returned to the original program by executing a return-
from-exception instruction (RTE). This instruction restores the contents of PC and SR and returns
control to the normal processing routine at the point at which the exception occurred. The contents
of SGR are not written back to R15 by the RTE instruction.
1. The contents of the PC, SR and R15 are saved in SPC, SSR and SGR, respectively.
2. The block (BL) bit in SR is set to 1.
3. The mode (MD) bit in SR is set to 1.
4. The register bank (RB) bit in SR is set to 1.
5. In a reset, the FPU disable (FD) bit in SR is cleared to 0.
6. The exception code is written to bits 13 to 0 of the interrupt event register (INTEVT).
7. Processing jumps to the start address of the interrupt exception handling routine, vector base
8. The processing branches to the corresponding exception handling vector address and the
Rev.1.00 Jan. 10, 2008 Page 266 of 1658
REJ09B0261-0100
register (VBR) + H'600.
When the INTMU bit in CPOOPM is set to 1, the interrupt mask level (IMASK) in SR is
automatically modified to the level of the accepted interrupt.
exception handling routine starts.
Interrupt Method
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