Renesas M16C/6NN Uživatelský manuál stáhnout pdf (Strana 17)

4. The RESET

pin is used by the E8 emulator. Therefore use an open-collector output buffer or a CR reset

circuit as the reset circuit of the user system. The recommended pull-up value is 4.7kΩ or more. The MCU

can be reset by outputting “L” from the E8 emulator. However, if a reset circuit on the user system is the

H-output type reset IC, it cannot be set “L” in the reset circuit on the user system and the E8 emulator will

not operate normally.

RESET

User

logic

Vcc

Pulled-up at

4.7kΩ or more

＊: Open-collector buffer

M16C/6N

M16C/62P

RESET

User system

connector

Figure 4.11 Example of a Reset Circuit

5. Connect Vss and Vcc with the Vss and Vcc (Vcc1) of the MCU, respectively.

6. Connect nothing with N.C.

7. The amount of voltage permitted to input to Vcc (Vcc1, Vcc2) must be within the guaranteed range of the

MCU.

8. If the NMI

pin interrupt are unused, make sure the NMI pin is pulled-up to the Vcc (Vcc1) pin through

a resistor.

9. Pin 14 is used to check for a connection between the E8 and the user system, and is not directly connected

to Vss inside the E8. Make sure that pin 14 and other pins 2, 6, 10, and 12 are connected to Vss.

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 35 36

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Renesas M16C/6NN Uživatelský manuál Strana 17