Eurotech BRI ISDN Manual do Utilizador descarregar pdf (Página 38)

Am186™CC Microcontroller Router Reference Design User’s Manual

2-12

Am186

™

CC Microcontroller Reset

NOTE: See sheet 10 in the schematics for the reset circuitry.

The Am186CC microcontroller requires the RES

input to be asserted for at least

1 ms to allow the internal circuitry to stabilize. The Am186CC microcontroller

router reference design uses an external device that monitors the 3.3-V V

provide a reset output with an internal 21-ms RC delay to drive the 3.3-V RES

input to the Am186CC microcontroller. Depressing the reset switch (SW1 at

location E-9) causes a system reset without cycling power.

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Eurotech BRI ISDN Manual do Utilizador Página 38