Equinox Systems GEMINI Podręcznik Użytkownika Pobierz pdf (Strona 46)

38

User Guide V1.10

RESET

XTAL1

XTAL2

GND

EA/Vpp

C1

C2

XT1

Vcc

C3

Vcc

TEMIC

T89C51RD2

Microcontroller

Active High

RESET Circuit

PROG-TXD

PROG-RXD

PROG-RESET

PROG-GROUND

RXD

TXD

P3.1

P3.0

U1

C4

PSEN

ALE

N/C

PROG-PSEN

P1.0-P1.7

P2.0-P2.7

USER

I/O

P0

P2

P1

8

8

8

R1

PROG-ACTIVE

P0.0-P0.7

D1

RS-232

Transceiver

R3

U2

User RS-232

Port

J2

N/C

PROG-VPP

TARGET-VCC

PROG-VCC

P3

6

P3.2-P3.7

Figure 31

ISP Target System Design Guide - TEMIC Microcontrollers

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