M34282T5-OPT MCU Board for PC4400 Emulator System User's Manual Rev.1.
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Contents Preface ....................................................................................................................................4 1. Precautions for Safety ......................................................................................................... 5 1.1 Safety Symbols and Meanings ..............................................................................5 2. Handling Precautions ...........................................................................................
Preface This instruction manual describes the specifications of the M34282T5-OPT emulator board for Renesas 4282 Group of 4-bit CMOS single-chip MCUs. The M34282T5-OPT is the MCU board for the PC4400 emulator system connected to the PC4000E emulator main unit and used with a control board and a function expansion board.
1. Precautions for Safety Both in this instruction manual and on the product, several icons are used to insure proper handling of this product and also to prevent injuries to you or other persons, or damage to your properties. This chapter describes precautions which should be taken in order to use this product safely and properly. Be sure to read this chapter before using this product. 1.
WARNING Warning for Installation: • Do not set this product in water or areas of high humidity. Spilling water or some other liquid into the main unit can cause an unrepairable damage. Warning for Use Environment: • This equipment is to be used in an environment with a maximum ambient temperature of 35°C. Care should be taken that this temperature is not exceeded. CAUTION Cautions to Be Taken for This Product: • Do not disassemble or modify this product.
IMPORTANT Notes on Difference between Actual MCU and Emulator: • Emulator operation differs from that of a mask MCU as listed below. For details refer to "5. Precautions to Be Taken When Debugging". (1) Reset condition (2) Initial values of internal resource data at power-on (3) Internal memory (ROM and RAM) capacities, etc.
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2. Handling Precautions 2.1 Handling Precautions When using the M34282T5-OPT board, pay attention to the following: (1) About an emulator system To configure the emulator system with the M34282T5-OPT, the following products are required. a. Emulator main unit (PC4000E) This is an universal emulator main unit for the 720 Series. b. Emulator card cage (PC4400) This is an emulator card cage to contain the emulator main unit, control board, function extension board and M34282T5-OPT board. c.
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3. Contents of M34282T5-OPT Package 3.1 Package Components of M34282T5-OPT Table 3.1 shows the package components of the M34282T5-OPT. When unpacking your package, check to see that all of these components are included. Table 3.
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4. M34282T5-OPT 4.1 Outline By using with the PC4400 emulator for the 720 Series, the M34282T5-OPT can make up an emulator system which can be operated by a personal computer. Figure 4.1 shows the emulator system configuration. Figure 4.1 Emulator system configuration * For how to connect to the target system, refer to "4.6 Connecting MCU Board to Target System" (page 20).
4.2 Specifications Table 4.1 lists specifications of the M34282T5-OPT. Table 4.1 Specifications of M34282T5-OPT Applicable MCU 4282 Group MCUs Evaluation MCU M34282E2GP (on board) System clock 4 MHz (using OSC-2 [4 MHz])* Maximum operating clock frequency 4.
4.3 Switches Figure 4.2 shows the locations of switches of the M34282T5-OPT and Tables 4.2 and 4.3 list the functions of each switch and its factory-settings. Figure 4.2 Switch locations Table 4.2 Functions of switches (1/2) Switch Switch setting Description VDD OFF ON OFF Does not output the V DD from the M34282T5-OPT to the target system. OFF Outputs the VDD from the M34282T5OPT to the target system.
Table 4.3 Functions of switches (2/2) Switch Switch setting Description Factory-setting OFF The pulldown resistors of ports G2 and G3 are OFF. OFF ON SW5 OFF The pulldown resistors of ports G2 and G3 are ON. ON OFF ON OFF The pulldown resistor of port D4 is OFF. OFF ON SW6 OFF The pulldown resistor of port D4 is ON. ON OFF ON OFF The pulldown resistor of port D5 is OFF. OFF ON SW7 OFF The pulldown resistor of port D5 is ON. ON OFF ON OFF The pulldown resistor of port D6 is OFF.
4.4 Check Pins The M34282T5-OPT has the check pins listed in Table 4.4. Table 4.4 Check pins Pin Description TP1 VDD Outputs power voltage +3 V to the evaluation MCU. TP2 XIN Outputs system clock input to the evaluation MCU. TP4 WRST TP5 GND Outputs "H" level when executing WRST instruction. By observing pulse width, it is possible to confirm the initializing cycle of the watchdog timer. GND 4.5 Connectors Table 4.5 lists the functions of connectors of the M34282T5-OPT. Figure 4.
(1) Connector J3 Table 4.6 lists the pin assignments of 40-wire half-pitch connector (J3) for connecting the PCA4029. And Figure 4.4 shows the J3 connector pin layout. Table 4.6 40-wire half-pitch connector (J3) for connecting PCA4029 Line A Line B I/O Line C I/O Line D Pin No. Signal Pin No. Signal Pin No. Signal I/O Pin No.
(3) J5 connector The J5 connector is a connector used to connect an oscillator board (OSC-2). Table 4.8 lists the pin assignments of the J5 connector. Figure 4.5 shows the pin layout of the J5 connector. For the 4.0MHz operation with the OSC-2 oscillator board, see Figure 4.6. Table 4.8 Pin assignments of J5 connector Pin No. Signal Description 1 VCC Power supply 2 GND GND 3 CLK Clock input 4 GND GND Figure 4.5 Pin layout of J5 connector Figure 4.6 Circuit diagram of OSC-2 (4.
4.6 Connecting MCU Board to Target System Figure 4.7 shows the connection to the target system using the 20-wire normal-pitch cable. Connect the M34282T5-OPT with the IC socket for 2.54-mm-pitch 20-pin DIP (e.g. IC26-2003-GS4: made by Yamaichi Electronics Co., Ltd.) on the target system using the included 20-wire normal-pitch flat cable. However, the M34282T5-OPT cannot be connected to the foot pattern of the MCU package (20P2NA or 20P2E/F-A).
Table 4.9 20-wire normal-pitch cable pin assignments 20-wire normal-pitch cable 1 VSS 20 VDD 2 E2 19 CARR 3 E1 18 D0 4 XIN (not connected) 17 D1 5 XOUT (not connected) 16 D2 6 E0 15 D3 7 G0 14 D4 8 G1 13 D5 9 G2 12 D6 10 G3 11 D7 *1 The VDD does not input the power supply voltage from the target system, but outputs from the power circuit on the M34282T5-OPT to the target system. The VDD can output by setting the switch SW1. For how to set the switches, refer to "4.
An evaluation MCU on the M34282T5-OPT and the target system are connected as shown below. (1) Pin connected directly to the target system (1 type, 1 line) • VSS (2) Pins connected to the target system via emulation circuits etc. (5 types, 17 lines) • G0 to G3 • D0 to D7 • E0 to E2 • CARR • VDD (3) Pins not connected to the target system (2 types, 2 lines) • XIN • XOUT * With the M34282T5-OPT, XIN and XOUT pins are not connected to the target system.
5. Precautions to Be Taken When Debugging 5.1 Reset The M34282T5-OPT can be reset by the reset command of emulator debugger RTT72, but cannot emulate device operation at power-on reset. Use an evaluation MCU (OTP version) to verify the operation associated with power-on reset. 5.2 Capacity of Internal Memory (ROM, RAM) The M34282T5-OPT is equipped with the M34282E2GP as an evaluation MCU.
5.4 System Clock Depending on how the instruction clock is set, use the M34282T5-OPT in the range of frequencies listed in table 5.2. When the instruction clock is set to STCK = f(XIN) and the system clock frequency is over 500 kHz, the emulator may not work properly. Table 5.2 Operating frequencies of the M34282T5-OPT Voltage Instruction clock Frequency STCK = f(XIN)/8 4.
5.7 Program Execution (G, GB) The PC4400 and the M34282T5-OPT's hardware are subject to the following restrictions with respect to the operation of the program execution commands (G and GB). (1) Continuous description of instructions Hardware break points set in a continuous description of instructions following one after another do not cause a break to occur in the continuous description of instructions.
(2) Skip instructions (e.g. SNZP, INY, DEY, SZB, SEAM, SZC and RTS) In cases when a skip instruction skips the next instruction, a break point set in the skipped instruction does not cause execution to halt. (See Program examples 5.3 and 5.4) Program example 5.3 POINT: POINT_A: LXY SZD B TAM • • 0,0 jmp_adr 0 ; Skip when D(0) = 0 If a break point is set at POINT, D(0) = 0: Execution is halted immediately before the instruction at POINT.
5.8 Pulldown Transistor Control Since ports D4 to D7, E0 and G0 to G3 contain emulation circuits, you can not control the pulldown resistors using the pulldown control register. If you want to use the internal pulldown resistors, turn on switches SW4 to SW10 when occasion demands. With the M34282T5-OPT, the port's resistance value of the pulldown resistor is 150 kΩ. When changing the resistance value of the pulldown resistor, replace RA1 (ports E0, G3 to G0) and RA2 (ports G7 to G4) on the M34282T5-OPT.
5.10 Port I/O Characteristics With the M34282T5-OPT, port I/O characteristics are different from actual MCUs because there is an emulation circuit in ports E0, G0 to G3 and D0 to D7. Table 5.4 lists port I/O characteristics of the M34282T5-OPT. Table 5.4 Emulation port I/O characteristics Port Device Item VIH Input 74HC541 VIL E0 Output TD62787 - VCC = 4.5 V 3.15 V - VCC = 2.0 V - 0.5 V - VCE(sat) - - VCC = 2.0 V 1.5 V VCC = 4.5 V 3.15 V - VCC = 2.0 V - 0.5 V VCC = 4.
5.11 External Trigger (1) External trigger signal input timing The latch timing of the external trigger signal is shown in Figure 5.3. Output Instruction Next output Instruction Instruction clock STCK External trigger signal Figure 5.3 Latch timing of external trigger signal (2) External trigger signal input characteristics Trigger breaks work according to the condition (leading edge/trailing edge) of signals input from the external trigger cable.
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6. LED of PC4000E 6.1 LED Indication at Emulator Startup The emulator checks the PC4400 system immediately after startup. During system check the PC4000E's SAFE LED flashes and the ERROR LED stays on steady. If the SAFE LED does not flash, it means that the system check program is not operating. In such a case, check whether the PC4000E, PC4400 card cage and each circuit board are fitted correctly. When the system check is completed, the emulator status is indicated by the LEDs on the PC4000E. Table 6.
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7. M34282T5-OPT Connection Circuit Diagram Figure 7.1 shows the M34282T5-OPT connection circuit diagram. This circuit diagram depicts the M34282T5-OPT connection centering on circuits connected to the target system. Emulator control blocks and other similar circuits that are not connected to the target system are omitted. Figure 7.
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8. External Dimensions of Emulator Probe 8.1 20-pin Pin Header Figure 8.1 shows the external dimensions of the emulator probe 2.54-mm-pitch 20-pin pin header of the M34282T5-OPT. Figure 8.
Appendix A. How to Request for Repair If your product is found faulty, follow the procedure below to send your product for repair. Customer Fill in the Repair Request Sheet included with this product, then send it along with this product for repair to your local distributor. Make sure that information in the Repair Request Sheet is written in as much detail as possible to facilitate repair.
M34282T5-OPT User's Manual Rev.1.
