Thanks for reply. Not working but now more clear for me how to handle this controller. I tried init the controller with default I2c adress $70 like this:
Code:
;pic 12F1840
#CONFIG
    __config _CONFIG1, _FOSC_INTOSC & _MCLRE_ON & _CP_OFF & _CPD_OFF
    __config _CONFIG2, _PLLEN_OFF & _LVP_OFF
#ENDCONFIG


OSCCON = %01110000 
DEFINE OSC 8 


TRISA = %000000      


ANSELA = 0				'Digital
  
 scl var portA.2
 sda var portA.1
 
 SADD VAR BYTE
 ROW VAR WORD[5]
 COL var byte
 TMP VAR WORD
 CLEAR

 INIT:
 i2cwrite sda,scl,$70,[$21] 'on 
 i2cwrite sda,scl,$70,[$81] 'blink off
 i2cwrite sda,scl,$70,[$E8] 'HALF BRIGHT
 i2cwrite sda,scl,$70,[$A0] 'NO INT
 i2cwrite sda,scl,$70,[SADD,ROW,ROW,ROW,ROW,ROW] ;CLEAR

pause 200

;send something

row=5
SADD=1

i2cwrite sda,scl,$70,[SADD,ROW[0],ROW[1],ROW[2],ROW[3],ROW[4]]
No sign of life.