Thanks for helping me guys. I know that I don't have many experience on microcontroller so i asking you to helping me. In the other hand, my english is not good and i can't talk/write too much about my project, it's really hard for me. But i dont't wanna make it problems because i was on learning. So please help me.

It means, before i use it with 8051, i check those driver first by connecting the control pin through Vcc supply (5V).

The schematic is similar with schematic in L298 datasheet. I paralleled those outputs to gain higher currents.

I don't really know about the motor specification but i think it require 12V and 5A for supply voltage

Actually this motor driver is connected with this program
.I connected those control pin at motor driver to P1 at 8051.
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M1	bit p1.0  ;M1 and M2 is motor polarity
M2	bit p1.1
TLS	bit p1.2  ;TLS=top limit switch
BLS	bit p1.3  ;BLS=bottom limit switch
SB	bit p1.4  ;SB=start button
start:	clr M1
	clr M2
	jb SB,up
	jmp start
up:	setb M1
	jb TLS,up
	clr M1
	setb M2
down:	jb BLS,down
	clr M2
	ret	
end

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The motor only move up and can't move down until i pressed "SB" button because p1.0 or M1 still on "1" condition.