APU0071-002WE-TY 데이터 시트보기 (PDF) - Anpec Electronics

부품명

상세내역

일치하는 목록

APU0071-002WE-TY

80 Segment / 16 Common Controller for Dot Matrix LCD

Anpec Electronics 

APU0071

6. CHARACTER GENERATOR ROM (CGROM)

CGROM generates 5 × 5 × 7 character pattern from character generate code in DDRAM. CGROM has 5 ×

7-dot 224-character pattern excluding cursor position. The relationship between character code and

character pattern can be referred to Table 5.

7. TIMING GENERATION CIRCUIT

Timing generation circuit generates clock signals for the internal operations.

8. LCD DRIVER CIRCUIT

LCD driver circuit has 16 common and 80 segment output signals for LCD driving.

Data from CGRAM / CGROM is transferred to 80-bit segment shift register in a serially, which is then it is

stored to 80-bit segment output latch. When each COM is selected by a 16-bit common register, the

segment data also outputs through segment driver from 40-bit segment output latch.

9. CURSOR / BLINK CONTROL CIRCUIT

It controls cursor / blink ON / OFF at the cursor position.

INSTRUCTION DESCRIPTION

1. OUTLINE

To overcome the speed difference between the internal clock of APU0071 and the MPU clock, the

APU0071 per-forms an internal operation by storing control information to IR or DR. The internal operation

is determined according to the signal from MPU, composed of read / write and data bytes.

Instruction can be divided into four types :

1-1. APU0071 function set instructions (set display methods, set data length, etc.)

1-2. Address set instructions to internal RAM

1-3. Data transfer instructions with internal RAM

1-4. Others

The address of internal RAM is automatically increased or increased by 1.

Note : During an internal operation, the Busy Flag (DB7) is High. Busy Flag check must precede the next

instruction.

Copyright  ANPEC Electronics Corp.

9

Rev. A.07 - FEB., 2002

www.anpec.com.tw

Share Link: