Zilog EZ80L92 Bedienungsanleitung PDF herunterladen (Seite 33)

eZ80L92 Development Kit

User Manual

UM012913-0407 Operational Description

Table 11. Connector J9

Pin Symbol Description

1 MRESET

Reset, active Low, 50–100 ms. Closure to GND for

reset.

3 GND Ground.

6 D1 DCD indicator; can drive an LED anode without

additional circuitry.

7 D2 RxD indicator; can drive an LED anode without

additional circuitry.

8 D3 DTR indicator; can drive an LED anode without

additional circuitry.

9 D4 TxD indicator; can drive an LED anode without

additional circuitry.

Table 12. Connector J1

Pin Symbol Description

2MOD_DIS

Modem disable, active Low.

+5 V DC or +3.3 V DC input.

24 GND Ground.

25 PC4_DTR1 DTR interface; TTL levels.

26 PC6_DCD1 DCD interface; TTL levels.

27 PC3_CTS1 CTS interface; TTL levels.

28 PC5_DSR1 DSR interface; TTL levels.

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 85 86

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