ks0074 Samsung Semiconductor, Inc., ks0074 Datasheet - Page 44

• Manufacturer Part Number: ks0074
• Description: 34com/80seg Driver & Controller For Dot Matrix Lcd
• Manufacturer: Samsung Semiconductor, Inc.

KS0074
Interface with MPU in Bus Mode
1) Interface with 8-bits MPU
If 8-bits MPU is used, KS0074 can connect directly with that.
In this case, port E, RS, R/W and DB0 to DB7 need to interface each other.
Example of timing sequence is shown below.
2) Interface with 4-bits MPU
If 4-bits MPU is used, KS0074 can connect directly with this.
In this case, port E, RS, R/W and DB4 to DB7 need to interface each other. The transfer is performed by twice.
Example of timing sequence is shown below.
Fig 12. Example of 4-bit Bus Mode Timing Sequence




 !
" !#

Fig 11. Example of 8-bit Bus Mode Timing Sequence
34COM/80SEG DRIVER & CONTROLLER FOR DOT MATRIX LCD
  
  

  

  
$ 
 !
" !#