QB-MINI2 On-Chip Debug Emulator with Programming Function
Contents
1. No 10 Restriction on display of register values Target device 78KOS Description The register values may be displayed incorrectly in the debugger during a break Workaround There is no workaround This item has been corrected in firmware V4 00 No 11 Restriction on breakpoint for a CPU clock lower than 2 MHz Target device 78KOR Description If a break occurs during operation at a CPU clock fcLk lower than 2 MHz while the PERO and PER1 registers are set to 0 the internal flash memory can no longer be rewritten Consequently the following operations cannot be performed lt 1 gt Writing to internal flash memory lt 2 gt Setting or canceling of software breakpoint lt 3 gt Starting execution at the set software breakpoint position lt 4 gt Step wise execution at the set software breakpoint position lt 5 gt Step wise execution Return Out execution lt 6 gt Come Here lt 7 gt If Permit is selected in the Flash Programming area in the Configuration dialog box the following operations cannot be performed a Setting changing or canceling of hardware breaks b Masking unmasking of internal reset c Switching of peripheral breaks Workaround There is no workaround To set a breakpoint for operation performed at a CPU clock lower than 2 MHz use a hardware break not a software break With firmware V4 03 this restriction is corrected partially as shown below To apply this correction please use the NEC Electronics debug2. Workaround There is no workaround No 2 Restriction regarding watchdog timer Target device V850 Description The watchdog timer is forcibly stopped by the debug monitor program Therefore do not set the option byte so as to disable stoppage of the watchdog timer For the option byte setting see the user s manual of the target device Workaround There is no workaround No 3 Restriction on break during subclock operation Target device V850 Description When the mode for communication between MINICUBE2 and the target device is UART and if a break occurs during subclock operation while the main clock has been stopped the debug monitor program forcibly switches the operating clock to the main clock The device continues its operation with the main clock even after execution is resumed Whether the operating clock during a break is switched from the subclock to main clock depends on the Main Clock area setting in the Configuration dialog box of the debugger Workaround There is no workaround No 4 Restriction regarding break during flash macro servicing Target device V850 Description If a break occurs during flash macro servicing it occurs at an unexpected address This also applies to the case where a break occurs in the debugger such as when using the pseudo RRM function ZBG CD 07 0013 Attachment 5 9 Workaround There is no workaround Reset the device and reexecute the program No 5 Res
3. memory to enable such operations Correction of restriction No 11 is also included in this change After rewriting the flash memory is completed the SFR contents will be restored The debugger will output the following errors if the operation voltage is lower than the voltage with which flash memory rewriting is possible 1 or if the flash memory rewriting is prohibited by the debugger configuration 2 When using the ID78KOR QB e Incase of 1 FOC37 The voltage is too low to operate flash programming e In case of 2 FOC48 Flash programming is disabled in the debugger e In case of 1 or 2 and when setting or cancelling software breaks W401C Software break can not be set on this area A break which was generated if STOP mode is entered when the pseudo RRM function is used is now prevented by releasing the STOP mode ZBG CD 07 0013 Attachment 9 9 No 18 Restriction on hardware breaks Target device 78KOR Description A hardware break occurs at an address several instructions after the specified point This applies to both instruction fetch and data access If any of the following debugger operations lt 1 gt to lt 3 gt is performed while the flash memory cannot be rewritten a hardware break occurs at an address several instructions after the specified point lt 1 gt Step wise execution lt 2 gt Return Out execution lt 3 gt Come Here Workaround There is no workaround
4. program is downloaded Specifically illegal breaks occur immediately after execution the Source window cannot be opened and so on Workaround Assign the reset vector for the user program to addresses of 0x0100 or higher This item has been corrected in firmware V4 03 If you are using the NEC Electronics debugger ID78KOR QB please switch to ID78KOR QB V3 30 or later No 14 Restriction on using QB MINI2 with USB 1 1 Target device 78KOR Description The debugger operation may become invalid if it is connected via USB 1 1 Workaround There is no workaround This item has been corrected in firmware V4 03 No 15 Restriction on operation at 20 MHz or higher frequency Target device 78KOR Description When the QB MINI2 operates at a frequency of 20 MHz or higher downloading or manipulation to change the memory contents may fail Workaround Perform downloading or manipulation to change the memory contents at a frequency lower than 20 MHz This item has been corrected in firmware V4 03 ZBG CD 07 0013 Attachment 8 9 No 16 Restriction on general purpose registers after reset Target device 78KOR Description After reset in standby mode the general register contents are not retained Workaround There is no workaround No 17 Specifications changed added in conjunction with firmware optimization Target device 78KOR Description The specifications shown below have been changed or added in conjunct
5. x O 15 78KO D Restriction on operation at 20 MHz or higher x x x x x O frequency 16 78KOR D Restriction on general purpose registers after reset x x x 17 78KOR D Specifications changed added in conjunction with x x firmware optimization 18 78KOR D Restriction on hardware breaks x x x O Restrictions are not applicable or already corrected Changes or additions of specifications are applied A Restrictions are partially corrected x Restrictions are applicable Changes or additions of specifications are not applied Not relevant or the target device is not supported Note D Applicable during debugging P Applicable during programming Remark The permanent restriction means a restriction that is not planned for correction ZBG CD 07 0013 Attachment 4 9 Details of Bugs and Added Specifications No 1 Internal high speed RAM values become invalid after reset Target device 78KO Description If a reset is input via the RESET pin during program execution portions in the internal high speed RAM areas shown below become invalid This bug does not apply to reset sources such as the watchdog timer LVI etc 5 bytes from FECBh to FECFh When Permit is selected in Target Power OFF field in Configuration dialog box 10 bytes from FEC9h to FECFh and FEDDh to FEDFh When Not Permit is selected in Target Power OFF field in Configuration dialog box
6. Microcontroller Technical Information CP K O Document No ZBG CD 07 0013 QB MINI2 Date issued January 31 2007 On Chip Debug Emulator Issued by Development Tool Group with Programming Function Multipurpose Microcomputer Systems Division 4th Systems Operations Unit Usage Restrictions NEC Electronics Corporation Related QB MINI2 User s Manual Notification Usage restriction documents U18371EJ1VOUMOO classification Upgrade QB MINI2 Operating Precautions Document modification ZUD CD 07 0007 Other notification 1 Affected product Control Code QB MINI2 MINICUBE2 v4 01 or earier Note See the attachment for the identification method for the control code and firmware version 2 New restrictions Restrictions and specification changes No 14 to No 18 have been added See the attachment for details No 14 Restriction on using QB MINI2 with USB 1 1 When using a 78KOR device No 15 Restriction on operation at 20 MHz or higher frequency When using a 78KOR device No 16 Restriction on general purpose registers after reset When using a 78KOR device No 17 Specifications changed added in conjunction with firmware optimization When using a 78KOR device No 18 Restriction on hardware breaks When using a 78KOR device 3 Workarounds See the attachment 4 Modification schedule Restrictions No 14 No 15 and No 17 have been corrected or implemented in MINICUBE2 firmware V4 03 whic
7. chment 3 9 Product History Table 1 is a list of restrictions and changed added specifications of MINICUBE2 Table 1 List of Restrictions and Changed Added Specifications Control Code Target n i a A Changed Added Specifications and Restrictions Device F W Version V3 00 V4 00 1 78KO D Internal high speed RAM values become invalid after x x x x X x reset V850 D Restriction regarding watchdog timer x x x x x V850 D Restriction on break during subclock operation x x x x x V850 D Restriction regarding break during flash macro x x x x x servicing V850 D Restriction regarding reset vector handling function x x x x x V850 D Restriction on rewriting registers that require a x x x x x specific sequence 7 V850 D Restriction when a reset is generated x x x x x 78K0S D Restriction on debugging with operating clock of 6 x MHZ or lower 9 78K0S D Restriction on downloading when operating clock is x x O O 10 MHz 10 78KOS D Restriction on display of register values x O O O 11 78KOR D Restriction on breakpoint for a CPU clock lower than E x x A 2 MHz 12 78KOR D Restriction on debugging of time measurement E x x O function in 1 wire mode 13 78KOR D Restriction regarding invalid operation after program a x x O download 14 78KOR D Restriction on using QB MINI2 with USB 1 1 x
8. es e NEC Electronics products are classified into the following three quality grades Standard Special and Specific The Specific quality grade applies only to NEC Electronics products developed based on a customer designated quality assurance program for a specific application The recommended applications of an NEC Electronics product depend on its quality grade as indicated below Customers must check the quality grade of each NEC Electronics product before using it in a particular application Standard Computers office equipment communications equipment test and measurement equipment audio and visual equipment home electronic appliances machine tools personal electronic equipment and industrial robots Special Transportation equipment automobiles trains ships etc traffic control systems anti disaster systems anti crime systems safety equipment and medical equipment not specifically designed for life support Specific Aircraft aerospace equipment submersible repeaters nuclear reactor control systems life support systems and medical equipment for life support etc The quality grade of NEC Electronics products is Standard unless otherwise expressly specified in NEC Electronics data sheets or data books etc If customers wish to use NEC Electronics products in applications not intended by NEC Electronics they must contact an NEC Electronics sales representative in advance to determine NEC Electronic
9. ger ID78KOR QB V3 30 or later Correction For clock frequencies with which flash memory cannot be written specifications will be changed so that the frequency that enables flash memory rewriting is selected automatically and the register settings are restored after flash memory rewriting is completed To prevent the frequency from being switched automatically select User in the Monitor Clock area and Not Permit in the Flash Programming area in the ID78KOR QB Configuration dialog box However operations lt 1 gt to lt 7 gt shown above can no longer be performed ZBG CD 07 0013 Attachment 7 9 No 12 Restriction on debugging of time measurement function in 1 wire mode Target device 78KOR Description When debugging is performed in 1 wire mode selected by choosing TOOLO in the Target Device Connection area in the Configuration dialog box of the debugger the Run Break execution time is measured with the accuracy of roughly 10 ms order The prescribed accuracy is 100 us Workaround Perform debugging in 2 wire mode TOOLO TOOL1 This item has been corrected in firmware V4 03 If you are using the NEC Electronics debugger ID78KOR QB please switch to ID78KOR QB V3 30 or later No 13 Restriction regarding invalid operation after program download Target device 78KOR Description When the reset vector addresses 0 and 1 is assigned to an address lower than 0x0100 the debugger operation becomes invalid after a
10. h was released on January 29 2007 Restrictions No 16 and No 18 are not planned for correction 5 List of restrictions For the product history and the details of the list of restrictions are described in the attachment ZBG CD 07 0013 Attachment 1 9 Notes on Using QB MINI2 This document describes the following items Refer to the user s manual of the QB MINI2 hereafter referred to as MINICUBE2 for cautions on using MINICUBE2 e Restrictions not applicable to the target device but applicable to MINICUBE2 e Restrictions applicable to both the target device and MINICUBE2 but correction is planned only for MINICUBE2 e Devices supported by MINICUBE2 Refer to the following documents for the restrictions in the target device e User s manual of target device e Restrictions notification document for target device e The information in this document is current as of January 2007 The information is subject to change without notice For actual design in refer to the latest publications of NEC Electronics data sheets or data books etc for the most up to date specifications of NEC Electronics products Not all products and or types are available in every country Please check with an NEC Electronics sales representative for availability and additional information e No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Electronics NEC Electronics assumes no
11. ion with firmware optimization See QB MINI2 Operating Precautions ZUD CD 07 0007 for information on changes in the MINICUBE2 user s manual in conjunction with this modification This item has been implemented in firmware V4 03 To apply this correction use the NEC Electronics debugger ID78KOR QB V3 30 or later lt 1 gt lt 2 gt lt 3 gt lt 4 gt lt 5 gt lt 6 gt lt 7 gt The debugger operation speed has been improved by improving the MINICUBE2 firmware processing The operation speed in 1 wire mode has been improved to be equalized with that in 2 wire mode For a case when the pseudo real time monitor function RRM function is not used during debugging in 2 wire mode the occupied size of the debug monitor program allocated to the last block in the internal ROM has been reduced from 1 KB to 88 bytes Instructions that perform two instructions during step wise execution have been modified so as to perform only one instruction The option byte setting C1H for the LVI default start function is now the same regardless of whether MINICUBE2 is connected Debugger operations for rewriting the flash memory download software break setting etc which were not possible when the target microcontroller cannot rewrite the flash memory due to the CPU clock or the regulator mode are now available by changing the specification so that the debugger automatically changes the SFR contents so as to enable rewriting of the flash
12. responsibility for any errors that may appear in this document e NEC Electronics does not assume any liability for infringement of patents copyrights or other intellectual property rights of third parties by or arising from the use of NEC Electronics products listed in this document or any other liability arising from the use of such products No license express implied or otherwise is granted under any patents copyrights or other intellectual property rights of NEC Electronics or others e Descriptions of circuits software and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples The incorporation of these circuits software and information in the design of a customer s equipment shall be done under the full responsibility of the customer NEC Electronics assumes no responsibility for any losses incurred by customers or third parties arising from the use of these circuits software and information e While NEC Electronics endeavors to enhance the quality reliability and safety of NEC Electronics products customers agree and acknowledge that the possibility of defects thereof cannot be eliminated entirely To minimize risks of damage to property or injury including death to persons arising from defects in NEC Electronics products customers must incorporate sufficient safety measures in their design such as redundancy fire containment and anti failure featur
13. s willingness to support a given application Note 1 NEC Electronics as used in this statement means NEC Electronics Corporation and also includes its majority owned subsidiaries 2 NEC Electronics products means any product developed or manufactured by or for NEC Electronics as defined above M8E 02 11 1 ZBG CD 07 0013 Attachment 2 9 Product Version Note 1 Note 2 Control Code Firmware Remark Newly released Supports V850 microcontrollers Supports 78KOS microcontrollers Supports 78KOR microcontrollers Notes 1 The control code is an alphabetic code used to identify the hardware of MINICUBE2 It is the second digit from the left in the 10 digit serial number printed on the sticker attached to the bottom side of MINICUBE2 if it has not been upgraded If the product has been upgraded the control code can be checked with the MINICUBE2 diagnostic tool see Figure 1 below 2 Firmware F W is a program embedded in the device in MINICUBE2 for control The F W version is shown as Vx xx x is an arbitrary number The version can be checked with the MINICUBE2 diagnostic tool see Figure 1 below Figure 1 Checking Control Code and Firmware Version BE MINICUBE2 Diagnostic Tool SELF TEST FAW MINICUBE2 Informa MINIGUBE2 wo FAW 1 00 Control code Firmware version OK be TITTLE oe HARSHER ERRARAR AERA RRRAA 100 START ZBG CD 07 0013 Atta
14. triction regarding reset vector handling function Target device V850 Description The reset vector handling function is not supported Workaround There is no workaround No 6 Restriction on rewriting registers that require a specific sequence Target device V850 Description Peripheral I O registers other than PCC and CKC that require a specific sequence cannot be rewritten in the I O register window or the like in the debugger Workaround There is no workaround No 7 Restriction when a reset is generated Target device V850 Description A break occurs when an external reset when reset is not masked or an internal reset is generated Workaround There is no workaround No 8 Restriction on debugging with operating clock of 6 MHz or lower Target device 78KOS Description The debugger does not start when the target device operating frequency is 6 MHz or lower Workaround There is no workaround This item has been corrected in firmware V4 00 No 9 Restriction on downloading when operating clock is 10 MHz Target device 78KOS Description When the target device operating frequency is 10 MHz an error will occur during download of a program and the downloading cannot be completed Workaround There is no workaround This item has been corrected in firmware V4 01 If you are using the NEC Electronics debugger ZBG CD 07 0013 Attachment 6 9 ID78KOS QB please switch to ID78KOS QB V2 90 or later
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