HD61830 / HD61830B
LCD Graphics Controller Chip.

 

Application Notes

Table of Contents:

  1. Introduction
  2. Main Functions and Features
  3. Electrical Specifications
    1. Absolute Maximum Ratings
    2. Electrical Characteristics
  4. Interface Pin Connections
    1. MPU Interface Pin Functions
    2. LCD Interface Pin Functions
  5. Timing Characteristics
    1. MPU Interface Timing
    2. LCD Interface Timing HD61830
    3. LCD Interface Timing HD61830B
  6. System Block Diagram
  7. Power Supply Sequencing and (Not RST) Terminal
  8. HD61830(B) Instruction Set
    1. Mode Control Register
    2. Character Pitch Register
    3. Horizontal Count Register
    4. Multiplex Ratio Register (1/Duty)
    5. Cursor Position Register
    6. Display Start Address Registers
    7. Cursor Address Register ( VRAM write address register)
    8. Write Data to VRAM Instruction
    9. Read data from VRAM Instruction
    10. Bit Clear and Bit Set Instructions
    11. Read BUSY FLAG
    12. Busy Signal Timing
  9. Definitions for HP, HN, VP, CP, NX
  10. Relationship between Display Mode, VRAM data and LCD dots
  11. External CG-ROM Pattern
  12. Recommended Register values for Initializing Densitron Displays
    1. Character Mode Initialization
    2. Graphics Mode Initialization
    3. Initialization Flow Diagram
  13. Trouble shooting Guide
  14. Internal Character Generator Font Pattern and Character Codes
    1. Amendment 001 to document AN-01