R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 173
R0K572030S000BE
Manufacturer Part Number
R0K572030S000BE
Description
KIT DEV FOR SH7203
Manufacturer
Renesas Electronics America
Series
Renesas Starter Kits (RSK)r
Type
MCUr
Specifications of R0K572030S000BE
Contents
CPU Board, LCD Module, E10A-Lite Emulator, Cable, QuickStart Guide and CD-ROM
Silicon Manufacturer
Renesas
Kit Contents
Board
Silicon Family Name
SH7203
Silicon Core Number
R5S72030W200FP
Tool / Board Applications
General Purpose MCU, MPU, DSP, DSC
Mcu Supported Families
SH7203
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
SH7203
Lead Free Status / Rohs Status
Compliant
- Current page: 173 of 1686
- Download datasheet (10Mb)
5.6.4
When an undefined code, including FPU instructions and FPU-related CPU instructions in FPU
module standby state, placed anywhere other than immediately after a delayed branch instruction,
i.e., in a delay slot, is decoded, general illegal instruction exception handling starts. When the FPU
has entered a module standby state, the floating point instruction and FPU-related CPU
instructions are handled as undefined codes. If these instructions are placed anywhere other than
immediately after a delayed branch instruction (i.e., in a delay slot) and then decoded, general
illegal instruction exception handling starts.
In general illegal instruction exception handling, the CPU handles general illegal instructions in
the same way as slot illegal instructions. Unlike processing of slot illegal instructions, however,
the program counter value stored is the start address of the undefined code.
5.6.5
When an integer division instruction performs division by zero or the result of integer division
overflows, integer division instruction exception handling starts. The instructions that may become
the source of division-by-zero exception are DIVU and DIVS. The only source instruction of
overflow exception is DIVS, and overflow exception occurs only when the negative maximum
value is divided by −1. The CPU operates as follows:
1. The exception service routine start address which corresponds to the integer division exception
2. The status register (SR) is saved to the stack.
3. The program counter (PC) is saved to the stack. The PC value saved is the start address of the
4. After jumping to the exception service routine start address fetched from the exception
that occurred is fetched from the exception handling vector table.
integer division instruction at which the exception occurred.
handling vector table, program execution starts. The jump that occurs is not a delayed branch.
General Illegal Instructions
Integer Division Exceptions
Rev. 3.00 Sep. 28, 2009 Page 141 of 1650
Section 5 Exception Handling
REJ09B0313-0300
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