Renesas SKP16C26A User manual

SKP16C26A
User's Manual
www.renesas.com
Applications Engineering
Powerful Processors – Easy to Use™
Rev.1.0
June 2004

Applications Engineering
SKP16C26A User’s Manual Rev. 1.0 June 2004
Table of Contents
1.0 Introduction ...............................................................................................................2
2.0 Contents of Product Package....................................................................................3
3.0 Limited Guarantee and Support.................................................................................4
4.0 System Connectivity..................................................................................................5
4.1 Host Computer Requirements ................................................................................5
4.2 SKP16C26A Board.................................................................................................5
4.3 ICD (RTA-FoUSB-MON) ........................................................................................5
4.4 Software Development Tools..................................................................................5
4.4.1 HEW (High-performance Embedded Workshop) ..............................................6
4.4.2 NC30WA Entry Version ....................................................................................6
4.4.3 KD30 Debugger................................................................................................6
4.4.4 FoUSB (Flash-over-USB
TM
) Programmer .........................................................6
5.0 Hardware...................................................................................................................7
5.1 SKP16C26A Board.................................................................................................7
5.2 SKP16C26A Board Block Diagram.........................................................................8
5.3 M16C/26A Group of MCUs.....................................................................................8
5.4 SKP16C26A Board Jumper Configuration..............................................................9
5.4.1 JP1: MCU (U1) Power......................................................................................9
5.4.2 JP2: Xout..........................................................................................................9
5.5 LCD (Liquid Crystal Display)...................................................................................9
6.0 System Operation & Limitations ..............................................................................10
6.1 Kernel (ROM Monitor) Introduction.......................................................................10
6.2 Pin and Peripheral Limitations..............................................................................10
6.3 Memory Map ........................................................................................................11
6.4 Register Operation Limitations .............................................................................11
6.5 Limitations on Interrupts .......................................................................................11
6.6 Stop or Wait Mode Limitations..............................................................................12
6.7 User Program’s Real-Time Capability...................................................................12
6.8 Performing Debug Using Symbols........................................................................12
7.0 SKP16C26A Board Specifications...........................................................................13
7.1 Hardware Specifications.......................................................................................13
7.2 Power Supply Requirements ................................................................................13
7.3 Operating Environment.........................................................................................13
Appendix A. Troubleshooting Guide..............................................................................14
Appendix B. Reference Manuals ...................................................................................17
Appendix C. Expansion Headers...................................................................................18
Appendix D. SKP16C26A Schematics...........................................................................19
Appendix E. SKP Board Dimensions.............................................................................20
Appendix F. RTA-FoUSB-MON (ICD) ...........................................................................21

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SKP16C26A User’s Manual Rev. 1.0 2 / 21 June 2004
1.0 Introduction
The SKP16C26A StarterKit Plus (SKP) is a low-cost development environment for evaluating
M16C/26A group microcontrollers (MCU) and Renesas software development tools. The kit
comes with a complete software development tool chain including, HEW (IDE, GUI), NC30WA
(C-compiler, assembler, and linker), KD30 (Debugger), and FoUSB (Flash-over-USB™
Programmer).
A real-time, source-level debug environment is implemented using the KD30 debugging software
with the RTA-FoUSB-MON Flash Programmer/In-Circuit Debugger (ICD). The Flash-over-USB
TM
(FoUSB) Programmer software, with the ICD, allows in-system programming of the M16C/26A
flash MCU.
The ICD and firmware provide a convenient USB (Universal Serial Bus) interface between the
SKP16C26A board and the host PC. This interface reduces resource requirements on the
M16C/26A MCU, allows faster code downloads and, can also be used with many other Renesas
Flash MCU’s, SKP’s, and user’s target board.

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2.0 Contents of Product Package
This section describes the contents of the SKP16C26A product package. When unpacking your
SKP16C26A, please check to see that all products listed below are included.
2.1 SKP16C26A StarterKit Plus Product List
Table 2-1 lists the products included in the SKP16C26A.
Table 2-1 SKP16C26A Product List
Product Name Quantity Remark
SKP16C26A Board 1 M16C/26A SKP Board
RTA-FoUSB-MON (ICD) 1 KD30 Debugger/ FoUSB
Programmer Interface Device
6” 10-Pin Target Cable 1 Connects SKP16C26A Board
(J5) and the ICD
6’ Mini USB Cable 1 Connects ICD to the Host PC
SKP CD-ROM 1 Auto-install program
HEW (IDE)
NC30WA (C-compiler,
assembler, and linker)
KD30 Debugger
FoUSB Programmer
Manuals
Tutorials
Sample programs
2.1.1 SKP CD-ROM
The CD-ROM contains the electronic manuals and software necessary for developing programs.
Your computer must have Netscape Navigatoror Microsoft’s Internet Explorer to view the
help files and Acrobat Reader to view the manuals.
Insert the enclosed CD into your computer and SKP installer will auto-start. The SKP installer
program will create a C:\HEW3 and C:\MTOOL folder on your machine. All development tools
(HEW, NC30WA, KD30 Debugger, and FoUSB Programmer) can be found under C:\HEW or
C:\MTOOL. Documentation, sample code, and other SKP related files are in the C:\MTOOL\
SKP16C26A folder.
If the SKP installer program does not start up, browse the CD’s root folder and double-click on
‘skp_installer.exe’ to start installation.

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3.0 Limited Guarantee and Support
Renesas Technology America, Inc., warrants the SKP16C26A to be free from component or
assembly defect for a period of 180 days from the date of purchase. Settlement is limited to repair
or replacement of the product only. Renesas Technology America, Inc., does not assume any
liability arising out of the application or use of any product, circuit or procedure described herein.
No other liability or warranty apply, expressed or implied. Software warranty is limited to
replacement of the CD only. While every attempt has been made to ensure accurate
documentation, Renesas Technology America, Inc., cannot be held responsible for error or
omissions and reserves the right to make changes without further notice.
“Flash-Over-USB” is a trademark of Renesas Technology America, Inc. All trademarks are the
property of their respective owners.

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4.0 System Connectivity
The following lists the hardware and software products required for using the SKP16C26A
StarterKit Plus.
•Host Computer (supplied by user)
•SKP16C26A Board
•RTA-FoUSB-MON (ICD)
•Mini USB Cable
•Target Cable
•Software Tools (HEW IDE, NC30 Compiler/Linker, KD30 Debugger, FoUSB
Programmer)
Figure 4-1 shows the system connectivity for the SKP16C26A.
Figure 4-1 SKP16C26A System Connectivity
4.1 Host Computer Requirements
The minimum requirement to be able to use the software that comes with the SKP16C26A is a
PC with a USB port and Microsoft Windows 98, ME, 2000, or XP.
4.2 SKP16C26A Board
The SKP16C26A board provides an evaluation and development environment for the M16C/26A
group MCUs. See section 5.0 ‘Hardware’ for more details.
4.3 In-Circuit Debugger (RTA-FoUSB-MON)
The ICD provides a plug-and-play debugging and programming interface to the SKP16C26A
board via the host computer’s Universal Serial Bus (USB). The USB port also provides power to
the SKP16C26A board and ICD thereby eliminating the need for an external power supply.
4.4 Software Development Tools
The SKP installer program installs all the development tools. For details on installation, see the
Quick Start Guide or instructions in the Appendix of this manual. A brief description of all the
included tools follows. Please refer to the individual Tool manuals for detailed information.
A

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4.4.1 HEW (High-performance Embedded Workshop)
HEW provides a Graphical User Interface (GUI) that integrates the software development tools
and includes the C-compiler, assembler, linker, and editor.
4.4.2 NC30WA Entry Version
The NC30WA Entry version C-compiler included in the SKP has no time expiration, but has the
following limits:
1. The software comes without warranty.
2. The compiler always compile with “-fansi” option.
3. The compiler optimization settings is fixed and cannot be changed
4. The ‘-finfo’ option for other software tools such as stack viewer, etc. is not supported.
If your development needs exceed the above limitations, please go to the following web site
http://www.renesas.com/eng/products/mpumcu/toolhp/datsheet/m16c_e/nc30wa.htm and
download the full version (4 calendar month trial).
4.4.3 KD30 Debugger
KD30 is a remote debugger that runs on the host PC. While communicating with a kernel (i.e. a
ROM monitor program) on the target MCU through the ICD, KD30 provides a highly efficient
evaluation environment. KD30 features include:
•Source-line debug for assembly language, structured assembly language, C language
•Run command with 6breakpoints* for the M16C/26A
•RAM monitor function
•C variable “watch” window
Note: The number of breakpoints will vary depending on the M16C flash MCU used.
4.4.4 FoUSB (Flash-over-USB
TM
) Programmer
The Flash Over USB Programmer application provides In-System Programming capability for the
starter kit or any target board using an M16C family flash MCU (i.e.: R8C, M16C, M32C). Please
see the RTA-FoUSB-MON Users Manual for more details.

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5.0 Hardware
5.1 SKP16C26A Board
Figure 5-1 shows the SKP16C26A Board with major components identified.
Figure 5-1. SKP16C26A Board
M16C/26A
M30260F8GP
Power
LED
User Pushbutton Switches
User LED's
Thermistor
10MHz
Crystal
32KHz
Crystal
Analog
Adjust Pot
J1
Expansion
Port
RTA-FoUSB-
MON (ICD)
Connector
Reset
SW
8-character x
2-line LCD
LCD
Contrast
Expansion
Port
JP2
Xout
JP1
MCU Power

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5.2 SKP16C26A Board Block Diagram
The SKP16C26A board incorporates an M30260F8GP (48-pin QFP) from the M16C/26A group of
microcontrollers designated as U1. Figure 5-2 shows the SKP16C26A block diagram.
Figure 5-2. SKP16C26A Board Block Diagram
5.3 M16C/26A Group of MCUs
The M16C/26A group of 16-bit single-chip, flash microcontrollers (MCU) is part of the M16C/Tiny
family and utilizes the M16C/60 series CPU core. The hardware and software manuals for the
M16C/26A group of microcontrollers can be found under C:\MTOOL\SKP16C26A\Docs folder in
your PC or from the Start menu (Start > Programs > RENESAS-TOOLS > SKP16C26A >
Document Descriptions) after SKP software installation.
U1
M30260F8GP
MCU
Ports
J1, J2, J3, J4
Headers
8 characters
x 2 lines LCD
P9
XCin XCout
S4 S1 S2 S3 R16
P8_3 AN1
SI0 / 7
To
ICD
MCU Power
for Icc
Measurements
Vcc
R9
RT1
AN0
J5
P8_2 P8_1
Xin Xout
JP2
Y1
32.76kHz
JP1
Analog
Adjust Pot Thermistor
LCD
Contrast Pot
D3
RED
LED
D4 D5
P8_0 P7_4 P7_2
YELLOW
LED
GREEN
LED
Note: An external power supply is required if the
SKP16C26A Board is not connected to the ICD.
Vcc
Y2
10MHz

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5.4 SKP16C26A Board Jumper Configuration
5.4.1 JP1: MCU (U1) Power
JP1 is used to connect the Vcc pins of the M16C/26A MCU to the Vcc/MCU Power of the board.
It can be used to measure current/power consumption of the MCU during various modes of
operation. For normal operations, JP1 must be shorted.
JP1 is shorted by default.
5.4.2 JP2: Xout
JP2 is used to connect the output of the MCU’s internal amplifier to the crystal for oscillation. It
can be used to disconnect Xout when an externally driven clock is connected to Xin. For normal
operations, JP2 must be shorted.
JP2 is shorted by default.
5.4.3 Default Jumper Settings
Jumper JP1
MCU Power
JP2
Xout
Setting Shorted Shorted
5.5 LCD (Liquid Crystal Display)
The LCD is a 2-line by 8-character display with a KS0066 controller IC.

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6.0 System Operation & Limitations
The SKP16C26A provides sophisticated debugging features at a low cost but it does have some
limitations when used with the KD30 Debugger and ICD. Section 6.1 introduces the kernel (ROM
monitor) program and its purpose. The limitations when this kernel is running with the user
program are listed in table 6-1.
Table 6-1 System Limitations (when used with KD30)
Item Please Refer To
6.2 Pin and Peripheral Limitations
6.3 Memory Map
6.4 Status After Reset
6.5 Register Operation Limitations
User Limitations
6.6 Limitations on Interrupts
6.7 Stop or Wait Mode Limitations
Debugger Limitations 6.8 User Program’s Real-time Capability
6.1 Kernel (ROM Monitor) Introduction
During debug (used with the KD30 debugger), a small program, called a kernel, is downloaded to
the M16C/26A. The kernel communicates with the KD30 Debugger through the ICD regarding
MCU status during user code debugging operations.
There are no special steps required in the user program to make use of the ICD. The operation of
the kernel is transparent to the user but there are some limitations and these are discussed from
section 6.2.
After starting KD30, the ICD downloads the kernel to the M16C/26A if it does not exist (e.g. blank
device or programmed with FoUSB Programmer). After downloading the kernel, KD30 opens the
Program Window and the M16C/26A is ready for downloading user code.
Connecting the ICD without starting KD30 will not affect the lines connected between the ICD and
the M16C/26A – the ICD keeps the lines in high-impedance state. The ICD only drives the pins
after KD30 or FoUSB Programmer is started.
After program debug and verification, you can then create and download a binary, Intel (.hex) or
Motorola (.mot), file to the M16C/26A using the FoUSB Programmer. The program operation
erases the kernel and leaves the user program only.
6.2 Pin and Peripheral Limitations
SIO/UART1 pins are used for communication between the M16C/26A kernel on the SKP16C26A
board and KD30 Debugger through the ICD. Do not connect these pins to any other circuit, as
UART1 cannot be used in the user program. For details, please see the RTA-FoUSB-MON (ICD)
User Manual on Target M16C ROM Monitor Resources or related ICD application notes.

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6.3 Memory Map
The amount and memory locations of the kernel, to communicate with the KD30 and ICD, are
using on the M16C/26A on the SKP16C26A board is shown on Figure 6-2.
Figure 6-2 M30260F8GP Memory Map with the Kernel Program
Note: The kernel occupies memory associated with special-page vector numbers 18-19 and 192-
255. The user reset vector is re-mapped to address FFFD8h by the kernel.
6.4 Register Operation Limitations
Table 6-3 lists the limitations on register operation. The registers are inhibited from any
modification. If register contents are modified in any way, kernel operation cannot be guaranteed.
Table 6-3. Limitations on Register Operation
Register Name Restriction
User Interrupt Stack Pointer Range 0B80H – 0BFFH is used by the kernel
UART1 Transmit/Receive Mode Register
UART1 Transmit/Receive Control Register 0
UART1 Transmit/Receive Control Register 1
Do not change
UART1 Interrupt Control Register 0 Do not change
UART Transmit/Receive Control Register 2 Do not change bits 0 and 2
UART1 Transmit Buffer Register Do not write to this register
UART1 Receive Buffer Register Do not read this register
Port 6 and Port 6 DDR To prevent changes on P6_4 data and direction,
use read-modify-write only instructions (BSET,
BCLR, AND, OR, etc)
Reserved
SFR Area
Internal RAM
Area - 2kB
Reserved
Flash ROM
Area - 64KB
User RAM Area
= 1920 Bytes
User Program
Area - 62KB
Kernel
Program
Special Page
Area
Fixed Vector
Area
00000h
00400h
00BFFh
F0000h
FFFFFh
FF900h
Kernel RAM
(128 Bytes)
Note: User programs must
not use shaded areas.
FFE80h FFFDCh
High E/W
2kB data block
0F000h
10000h
0B7Fh
0BFFh
High E/W
2kB data block
0F800h

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6.5 Limitations on Interrupts - Vectors that Reside in the Hardware Vector Table
Table 6-4 lists the limitations on hardware interrupt (i.e. fixed) vector addresses.
Table 6-4. Interrupt Vector Addresses
Interrupt Cause M16C/26A Vector
Address
Kit Specification
Undefined FFFDCH ~ FFFDFH User available
Overflow FFFE0H ~ FFFE3H User available
BRK Instruction FFFE4H ~ FFFE7H User inhibited
Address Match FFFE8H ~ FFFEBH User inhibited
Single-step FFFECH ~ FFFEFH User inhibited
Watchdog Timer FFFF0H ~ FFFF3H User available (Note 1)
DBC FFFF4H ~ FFFF7H User inhibited
NMI FFFF8H ~ FFFFBH User available
RESET FFFFCH ~ FFFFFH Reset vector (Note 2)
NOTES:
(1) The Watchdog Timer vector is shared with the oscillation stop and voltage detection
interrupt. The vector is available for oscillation stop and voltage detection interrupts, but
avoid using the vector for watchdog timer interrupts.
(2) The kernel transparently relocates the Reset vector to FFFD8H.
6.6 Stop or Wait Mode Limitations
The kernel cannot be run in STOP or WAIT modes. Do not use these modes when debugging
your program.
6.7 User Program’s Real-Time Capability
Please be aware that while the kernel is in a “STOP” state, the hardware peripherals will continue
to run. Therefore, interrupts may not be serviced properly. Also, the watchdog timer will not be
serviced and will likely time out if active.
While the kernel is in a “RUN” state, there is no overhead on the application code, UNLESS a
RAM monitor window is open in KD30. This window requires periodic communication with the
MCU. This communication suspends normal application operation while servicing the request
(approximately 2000 BCLK cycles for each 16 bytes of data displayed in the window are used per
window update). The user must determine whether or not this behavior is acceptable.
6.8 Performing Debug Using Symbols
Normally when a new project is created using HEW, debugging symbols are enabled. If you are
unable to debug your program using symbols in KD30, add the debug option [-g] in HEW before
compiling the programs. To enable the [-g] option, perform the following:
•Open the workspace and project in HEW.
•Select [Renesas M16C Standard Toolchain] from Options pull-down menu.
•Click on Link tab.
•Select [Output] under the [Category] list box.
•Click on checkbox for [-g] ‘Outputs source debug information….’
•Click on [OK] button
For more information, see the HEW user’s manual.

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7.0 SKP16C26A Board Specifications
7.1 Hardware Specifications
Table 7-1 lists the specifications of the SKP16C26A Board.
Table 7-1. SKP16C26A Board Specifications
Item Specification
MCU M30260F8GP
Clocks Main Clock: crystal 10MHz, PLL, or ring oscillator
Sub Clock: 32.768kHz crystal
Memory
(with KD30 + ICD) RAM: 2kB (1920 Bytes) High E/W Data Block: 2kB x 2
Flash ROM: 62kB (63,744 Bytes)
Connectors [J5]: Serial interface connector (UART1 for KD30 + FoUSB-ICD)
[J1-J2, J3-J4]: 2, 50 pin (user supplied) headers (for user target connection)
Jumpers [JP1]: MCU Power for Icc Measurements
[JP2]: Xout to main crystal Y2
Switches [S1]: pushbutton (connected to P8_3)
[S2]: pushbutton (connected to P8_2)
[S3]: pushbutton (connected to P8_1)
[S4]: pushbutton (connected to Reset)
LED’s [D1] (Red): User output (connected to P8_0)
[D2] (Yellow): User output (connected to P7_4)
[D3] (Green): User output (connected to P7_2)
LCD 2-line x 8-character LCD with KS0066 controller IC
7.2 Power Supply Requirements
The SKP16C26A Board will draw 35mA (max). With the ICD, the current draw will be about
85mA.
7.3 Operating Environment
Table 7-2 lists the environmental conditions for using and storing the SKP16C26A board. When
storing the board, place it in a conductive bag and then in the packing box your product was
shipped in from the factory.
Table 7-2. Operating Environment
Environmental Condition Ambient Temperature Ambient Humidity
Operating 0 - 55°C
(No corrosive gas allowed) 30 to 80% (non-condensing)
Storage -30 to 75°C
(No corrosive gas allowed) 30 to 80% (non-condensing)

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Appendix A. Troubleshooting Guide
This section discusses possible problems you may encounter while installing the software (and
drivers) and while running the KD30 Debugger or FoUSB Programmer applications. This section
also discusses the countermeasures and solutions to resolve these problems.
If, for any reason, you cannot resolve the problem, please contact your Renesas representative
for assistance.
A.1 USB Driver Problems
This section discusses the usual problems with the driver installation and how to fix it. The most
common problem encountered is that Windows did not properly install the driver and so the ICD
is not recognized. This may also cause the device status to indicate that the device is not working
properly. An indication of this problem is the ICD status yellow LED - it blinks about 2-3 times a
second. When the driver is installed properly, the yellow LED should only blink every second.
Before trying the following steps, try restarting your PC and see if this resolves the problem. You
can check the status using the Device Manager. If the ICD appears under the Universal Serial
Bus Controllers with NO red X or yellow exclamation point, the driver was installed properly.
NOTE: If you are using Windows 2000 or XP, you need Administrator privileges to install
the drivers.
For cases where the ‘Device Status’ states the device is not working properly, please try the
following:
•Double-click on ‘Renesas USB-Monitor’ and a Renesas USB-Monitor Properties dialog
box appears.
•Click on ‘Driver’ tab and click on ‘Update Driver’ button.
•Select ‘Display a list…’ and click on ‘Have Disk’ button.
•Specify and locate the ‘C:\MTOOL\FoUSB\USB Drivers’ folder on your PC and install
‘usbmon.sys’ driver.
If you encounter problems on installing the drivers, you can try the following.
(1) Windows 2000
i. Copy the fousb.inf and usbmon.inf files from \USB Drivers folder to
\WINNT\INF folder.
ii. Copy the fousb.sys and usbmon.sys files from \USB Drivers folder to
\WINNT\SYSTEM32\drivers folder.
(2) Windows 98 or XP
i. Copy the fousb.inf and usbmon.inf files from C:\MTOOL\FoUSB\USB Drivers
folder to \WINDOWS\INF folder.
ii. Copy the fousb.sys and usbmon.sys files from C:\MTOOL\FoUSB\USB
Drivers folder to WINDOWS\SYSTEM32\drivers folder.

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A.2 KD30 Problems
This section discusses the cause of the problem and countermeasures to resolve it. The common
problems encountered with KD30 are:
•USB option cannot be selected from the initialization screen
•Cannot connect to target
•KD30 already exists
•Issues that may come up during debug operations
A.2.1 USB Option Unavailable
When USB cannot be selected from KD30’s Init dialog box, you might be using an old version of
KD30 that does not support USB. Uninstall this version of KD30 and install latest version of KD30
from the \Tools\KD30 directory of the SKP CD.
A.2.2 Cannot Connect to Target
When the message ‘Can’t connect with the target’ is displayed after KD30 startup, there are
several reasons that may cause this message to appear. Each cause and the corresponding
countermeasure are discussed below.
•The SKP is not connected correctly.
Please connect the ICD to your PC. Note: Regardless of whether the ICD is bus or target-
powered, please connect target board to ICD board first before plugging the USB cable to
your PC. Please see section 4 on system (SKP16C26A) connectivity.
•The ICD has no power (Power LED on ICD is off).
Please ensure that the Power Mode switch on the ICD is on the ‘USB’ side. In ‘Target’
position, the ICD is powered from the target side.
•USB was not selected on the Init dialog box.
Please select ‘USB’ from the Init dialog box that is displayed right after you start KD30.
•The selected MCU on the ICD board and the actual target MCU (M16C/26A) do not
match.
Close the error message by clicking on ‘OK’ button, and then click on the ‘Cancel’ button of
the KD30 Init window to close KD30. Make sure you select ‘M30280FA.mcu’. If the MCU
loaded on the ICD is different, KD30 will re-program the ICD to match it.
•The target MCU is damaged.
Try a different target board and see if KD30 will come up as you may have a damaged board
or MCU.

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A.2.3 KD30 Already Exists
When a message ‘KD30 already exists’ is displayed, the usual cause of this problem is that the
KD30 application was not properly closed. Please unplug the USB cable first and wait a few
seconds. Then check if KD30 is already running by looking at your task bar. If KD30 cannot be
found there, bring up Task Manager (press CTRL-ALT-DEL once and click on ‘Task Manager’
button). Select KD30.exe on the ‘Processes’ list and click on ‘End Process’ to terminate KD30.
Then re-plug in the USB cable and restart KD30.
A.2.4 Issues that may come up During Debug Operations
While using KD30 to debug user code, some issues may come up because the limitations
discussed in section 6 were not satisfied. The common issues are listed on table A.2, including
the countermeasures.
Table A.2. Problems while using KD30
Problem Possible Cause/s and Solution
After stepping a few
instructions, KD30 hangs
•Changes were made to UART1 SFR’s. Do NOT change
UART1 SFRs in user program.
Breakpoints do not seem to
work
•KD30 is in “FreeRun” mode. Change the RUN mode to
“Sampling” from the “Init” window (Environment > Init).
KD30 locks up (cannot stop
program) or
Communication error
message is displayed.
•Changes were made to UART1 SFR’s. Do NOT change
UART1 SFRs in user program.
•Ensure no limitations in Section 6 were violated.
•Re-initialize the system without closing KD30. See note
below.
•Do a hardware reset. User-program runaway may be
corrupting the kernel (RAM, interrupt vectors, flags, etc.)
Close KD30, hit reset button on the SKP16C26A to reset the
board, and then restart KD30.
Download problems •Filenames or directory names contain spaces or special
characters.
•HEW project not properly set up (startup files missing or out
of order, files added to wrong member, etc). Try creating a
new project and adding your source files to it. For details,
please see HEW user’s manual.
To re-initialize the system without closing KD30, try the following:
•Press the [OK] button on the error dialog box to close it.
•When an Exit dialog box appears, press the [Cancel] button to close it.
•Hit reset button on the SKP16C26A board.
•Press KD30 reset button.
After initialization, debugging can resume. However, it is recommended that you download your
program again before debugging.
Note: If it has been identified that there are problems with the ICD, please see the ICD’s (RTA-
FoUSB-MON) user’s manual and troubleshooting section of this manual.

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SKP16C26A User’s Manual Rev. 1.0 17 / 21 June 2004
Appendix B. Reference Manuals
Item Title Description
1. SKP16C26A Quick-Start Guide Gets you up and running with the SKP16C26A.
2. SKP16C26A User's Manual Installation and operation guide for the SKP16C26A.
3. SKP16C26A Board Schematic Schematic diagram for the SKP16C26A Starter Kit board.
4. SKP16C26A Board BOM Bill of materials for the SKP16C26A Starter Kit board.
5. M16C/26A Group Hardware Manual Operation and Specifications for the M16C/26A MCU.
6. M16C/20/60 Series C-Language
Programming Manual
ANSI C-language programming guide for the
M16C/20/60 series MCUs.
7. M16C/20/60 Series Assembler
Language Programming Manual
Assembly language programming guide for the
M16C/20/60 series MCUs.
8. M16C/20/60 Series Software
Manual
Instruction set manual for the M16C/20/60 series CPU
cores.
9. M16C/20/60 Series Sample
Programs
Sample programs and application notes for the
M16C/20/60 series MCUs.
10. HEW User's Manual High-performance Embedded Workshop User’s Manual.
11. KD30 User's Manual Easy-to-use source and assembly debugger.
12. AS30 User's Manual AS30 Assembler User’s Manual.
13. NC30 User's Manual NC30 C-Compiler User’s Manual.
14. RTA-FoUSB-MON User's Manual In-Circuit Debugger / Flash Programmer User’s Manual.

Applications Engineering
SKP16C26A User’s Manual Rev. 1.0 18 / 21 June 2004
Appendix C. Expansion Headers
J1 Pin Function J2 Pin Function
1 Vcc 1 GND
2 2
3 3
4 4
5 5
6 6
7 7
8 8 P1_5, INT3, ADTRIG
9 P1_6, INT4 9 P1_7, INT5
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
18 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
J3 Pin Function J4 Pin Function
1 Vcc 1 GND
2 CNVss 2 RESET
3 P10_0, AN0 3 P10_1, AN1
4 P10_2, AN2 4 P10_3, AN3
5 P10_4, AN4, KI0 5 P10_5, AN5, KI1
6 P10_6, AN6, KI2 6 P10_7, AN7, KI3
7 P9_0, TB0in, AN30, CLKout 7 P9_1, TB1in, AN31
8 P9_2, TB2in, AN32 8 P9_3, AN24
9 9
10 10
11 P8_0, TA4out, U 11 P8_1, TA4in, /U
12 P8_2, INT0 12 P8_3, INT1
13 P8_4, INT2, ZP 13 P8_5, NMI, SD
14 P8_6, XCout 14 P8_7, XCin
15 P7_0, TxD2, SDA, TA0out 15 P7_1, RxD2, SCL, TA0in, CLK1
16 P7_2, CLK2, TA1out, V, RxD1 16 P7_3, CTS2, TA1in, /V, TxD1
17 P7_4, TA2out, W 17 P7_5, TA2in, /W
18 P7_6, TA3out 18 P7_7, TA3in
19 P6_0, CTS0 19 P6_1, CLK0
20 P6_2, RxD0 20 P6_3, TxD0
21 P6_4, CTS1, CLKS1 21 P6_5, CLK1
22 P6_6, RxD1 22 P6_7, TxD1
23 Vref 23
24 Vcc 24 GND
25 Vcc 25 GND

Applications E ngineering
S K P 16C 26A Us er’s Manual R ev. 1.0 19 / 21 J une 2004
Appendix D. S K P 16C 26A S chematics
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
P0_6
P2_3 P1_7 P0_7
P3_0 P2_2
P2_5
P1_6 P2_6 P2_4 P2_0
P4_3 P3_5
P4_0 P4_1 P4_2
P3_7 P1_5P1_4
P1_0 P3_4 P0_4
P1_1
P1_2
P0_5 P2_7
P3_2
P10_6
P7_1
Vref
P8_5
P5_2
P7_5
P4_6 P4_4
P4_7 P5_1
P8_0
P10_4 P9_3
P7_7
P10_3 P10_1
P8_1
P5_3
P10_7
P4_5
P5_0 P3_6 P8_0
P8_3 P8_1
CNVss
RESET
P8_6
P6_4
CNVss
P6_7
P6_5
P6_1
P5_6
P0_1 P5_7 RESET
CNVss
MCU_POWER
P1_3
P0_2 P0_0 Vref
P8_7 P8_5 P3_1 P3_3
P5_4 P5_5
P0_3 P2_1
BYTE
P8_4 P8_2
P6_6
P8_2 P8_3 P7_2 P7_4
P6_0
P5_5
P9_1 P10_2 P10_5
P7_0
P6_4 P6_6 P6_0 P6_2 P8_6 P7_6 P7_2 P7_0 P7_4 P9_0 P10_6 P9_2
P9_0
P10_4 P10_0 P9_4 P10_2
P9_2
P9_6
P10_0
P6_3 P6_7 P6_5 P6_1 P7_3 P7_7 P7_1 P7_5 P9_1 P9_5 P9_3 P9_7 P10_5 P10_3 P10_1 P10_7
P5_0
RESET
P8_4
P8_6 P8_7 P6_0 P6_1 P6_2 P6_3 P6_4 P6_5 P6_6 P6_7 P1_7 P1_6 P1_5
P7_6 P7_3
VCC VCC
VCC VCC VCC
VCC
VCC
VCC
VCC
VCC
Title Size Document Number R e v Date: Sheet of
C
SKP16C26a
B
11
Renesas Technology America
AN0
Vref
AN1
NMI
MCU_POWER
ICD Debug port
NOTES
* INDICATES PART IS NOT POPULATED
M16C/26a M30260F8A
R5 680
D2 YELLOW
R10 10K R11
10K
Y1
32kHz
S3
LCD1
ACM0802B
LCD Module
Vss
1
Vcc
2
Vo
3
RS 4
R/W 5
EN 6
DB0
7
DB1
8
DB2
9
DB3
10
DB4 11 DB5 12 DB6 13 DB7 14
J4
CON25
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
R17 100K
R9 10K Contrast
13
2
D4
BAT54C
3
2
1
+
C1
2.2 uF
R15 7.32K 1%
D1 RED
JP2
12
R12 10K
R16 10K
13
2
J1
CON25
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
C4 0.1uF
R25 0 ohm
D5 RED
TP1 TEST POINT
1
J5
103308-1
+
1
+
3
+
5
+
7
+
9
+2 +4 +6 +8 +10
R13
0
C8 0.1uF
R8 10K
R18 0
12
R1 680
R20 10K
J2
CON25
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
C10
33pF
C2
0.1uF
TP6
C9 33pF
C7 18pF
S1
IC1
M30262
AVss
44
P15/INT3/ADtrg 36
P16/INT4 35 P17/INT5 34
P60/CTS0/RTS0 33
P61/CLK0 32 P62/RxD0 31
P63/TxD0 30
P64/CTS1/RTS1 29
P65/CLK1 28 P66/RxD1 27
P67/TxD1 26
P70/TxD2/TA0out
25
P71/RxD2/TA0in
24
P72/CLK2/TA1out/V
23
P73/CTS2/RTS2/TA1in/V
22
P74/TA2out/W
21
P75/TA2in/W
20
P76/TA3out
19
P77/TA3in
18
P80/TA4out/U
17
P81/TA4in/U
16
P82/INT0
15
P83/INT1
14
P85/NMI
12
P86/Xcout 6
P87/Xcin 5
P90/TB0in/CLKout
3
P91/TB1in
2
P92/TB2in
1
P93
48
P100/AN0
45
P101/AN1
43
CNVss
4
P102/AN2
42
P103/AN3
41
P104/AN4/KI0
40
P105/AN5/KI1
39
P106/AN6/KI2
38
P107/AN7/KI3
37
Vss
9
Vref
46
AVcc 47
Vcc 11
Xin 10
Xout 8
RESET 7
P84/INT2/ZP
13
C5 0.1uF
R24
0
1 2
R19 47K
12
S4 RESET
R6 680
R7 10K
R21 680
*R23 0
12
R14
0
D3
GREEN
R4 10K
R3 10K
C6
18pF
C3 0.1uF
C11 0.1uF
R2 10K
S2
t
RT1 10K
2 1
JP1
1 2
Y2
10 MHZ
J3
CON25
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25