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Black: Micom device, Green: Micom development tools, Red: Other product / Common items
2009/12
Design > Thermal Design >
Linear IC > Power Supply IC > Product Reference >
2009/10
Design > Background Knowledge >
Linear IC > Operational Amplifiers and Comparators > Operational Amplifiers >
2009/08
Design > Troubleshooting >
Linear IC > Operational Amplifiers and Comparators > Operational Amplifiers >
2009/07
Design > Troubleshooting >
Design > Background Knowledge >
Specifications/Reliability > Specifications >
Other Products > RF & Microwave Devices >
Design > Do's and Don'ts >
Design > Mounting/Assembly >
2009/05
Design > Handling of Unused Pins >
Environment > Environmental Impact >
Linear IC > Power Supply IC > 3-terminal Regulator >
2009/04
Environment > Environmental Impact >
Specifications/Reliability > Reliability >
Opto-Electronics > Photocouplers >
Opto-Electronics > Common Items >
Purchasing/Shipping > Export >
Basic Knowledge > Electric Circuit >
2009/03
Part Numbers >
Basic Knowledge > Electricity >
2009/02
Microcomputer > V850 Series > Self-programming >
- About "FlashBlockIVerify" function [V850 All flash common]
- How to change "security" setting [V850 All flash common]
- How to describe interrupt operation in case self-programming execution [V850 All flash common]
- How to get self-programming library and User's manual [V850 All flash common]
Microcomputer > 78K Series > Serial Communication >
- Even if read out SIO1n,is't there any method which the following clock does not output? [78K0/Kx Common]
- Programming example (No.2) for using UART [78K0S Common]
- Programming example (No.1) for using UART [78K0S Common]
- Internal UART doesn't have enough function. How can I construct UART using the general port instead? [78K0, 78K0S Common]
- How is the control signal processed although there is no Clear To Send signal of UART built-in the microcotroller? [Common]
- How to use UART6 which included 78K0/Kx2, when it is to be connected with RS-232C? [78K0, 78K0S]
- How to use Serial Array [78K0R]
Microcomputer > 78K Series > A/D D/A conversion >
Discrete > Common Items >
Purchasing/Shipping > Purchasing >
Microcomputer > V850 tools > CA850 > Regarding Optimization/Code-Instruction expansion >
- Is there anything we should take care of while describing an expression to speed up the execution?
- The message "Out of memory" is displayed when object size optimization and the execution speed options are selected.
- What are the demerits of Optimization?
- Is the debugging of the Source possible in spite of Optimization?
- How are register variables allocated?
- "tmp1" is declared as "volatile unsigned char *tmp1;", still it is optimized. What should be done to avoid optimization of "tmp1"?
- Is there any method for avoiding expansion of "Bcond" instruction, and "Jcond" instruction?
- Why is the "callt" instruction is output when version-up is done to V2.50?
- It seems that external reference memory is deleted due to optimization. What should be done to avoid this?
- Multiple label definition error is generated when execution speed optimization is selected.
- Is Volatile declaration necessary for variables, where optimization is not specified, but value is changed externally?
- Is it possible to refer to an auto variable when high speed optimization is turned on?
- Is the optimization option ignored if there is a description of assembler instruction?
- Regarding execution speed optimization & object size optimization.
- What is the setting method of CALLT base pointer (CTBP)?
Microcomputer > V850 tools > CA850 > Description of code size reduction >
- How to declare a function without a return value?
- Please provide an example of initializing the variables.
- Provide a description example, where one operand of the comparison operation is constant 16 or 17.
- Provide a description example, where the result of the condition of the if-else statement will be act as the return value.
- Provide a description example, where a value substituted using assignment statement is referred immediately after the substitution sentence.
- Please provide an example of usage of the variable of (unsigned) short and char type.
- Please provide an example of "Deletion of loop variable".
- Please provide an example of reducing the existence range of the variable.
- Provide a description example for expansion of a loop.
- Provide a description example, where "for/while" loop is transformed into "goto" statement.
- Provide a description example, for replacing complex if-else statements logically with equal effect.
- Provide a description example, where a identical function is called with different arguments at each place after branching.
- Provide a description example, where there are identical statements (assignment statement, function call etc.) at each place before joining.
- Provide a description example, where there are identical statements (assignment statements, function call etc.) at each place after branching.
- Please provide an example of replacing access to external variable with access of temporary variable.
- Please provide a description example, where each block of if-else statement includes only the assignment statement to the same variable.
- Please provide an example where assignment of same external variable exists in each case of switch statement and in if-else statement at each place.
- Please provide an example where if-else statement is used in place of the switch statement.
- Does the code efficiency worsen when a lot of data of the "unsigned char" type is used?
- Does the state of the memory arrangement change if there is a change in arrangement of the variable definition in C source?
- Is there any optimization option in V850E that uses half word of zero extension ("zxh") and sign extension ("sxh") instructions?
- Is there any description for the structure packing instruction to return to default?
- What is the priority order, when both structure packing instruction "# pragma pack" and "-Xpack=num" options are specified at the same time?
- Is the structure packing instruction "# pragma pack" is effective during one source file, from the point where this instruction appears?
- When there is an internal variable, does the compiler reserve the stack by four byte boundary regardless of the type of data?
- Which is the default alignment for structure packing from among 1, 2, 4, and 8?
- Which is the correct specification method of the structure packing according to the Pragma instruction?
- Is it possible to forcibly set the alignment condition for the structure type to the byte boundary or half word boundary by specifying an option in the compiler?
- About the size of the structure type defined as per the alignment condition to the structure type.
- Although the structure size is obtained using the "sizeof" operator, the expected value is not returned.
Communication > USB > Host/Peripheral Controller >
- Development environment
- Board design of uPD720150 (when using the peripheral function)
- Board design of uPD720150 (when using the host function)
- Board design of uPD720150 (when using both the host and peripheral functions)
- Peripheral function of uPD720150
- Host function of uPD720150
- System clock
- Basic specifications
2009/01
Other Products > RF & Microwave Devices >
Opto-Electronics > Photocouplers >
- Characteristics: Cause of delay in the rise time
- Characteristics: Production volume of each CTR rank
- Characteristics: Voltage supply to the light-emitting side
Opto-Electronics > Common Items >
Discrete > Diode >
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