Epson SED 1520 Series Manual do Utilizador descarregar pdf (Página 3)

S-MOS SYSTEMS, INC.

Table of Contents SED1520

Contents

1.0 Overview .................................................................................................................................................. 7

1.1 Description .................................................................................................................................... 7

1.2 Features ........................................................................................................................................ 7

1.2.1 SED1520 family specifications ....................................................................................... 7

1.3 Block Diagram ............................................................................................................................... 8

1.4 Package ........................................................................................................................................ 9

1.4.1 Pin Configuration Table .................................................................................................. 9

2.0 Pin Description...................................................................................................................................... 13

2.1 Power Signals ............................................................................................................................. 13

2.2 System Bus Interface Signals ..................................................................................................... 13

2.3 LCD Drive Circuit Signals ............................................................................................................ 13

3.0 Description of Circuit Blocks ............................................................................................................... 17

3.1 MPU Interface ............................................................................................................................. 17

3.1.1 Selection of Interface Type ........................................................................................... 17

3.1.2 Identification of Data Bus Signals................................................................................. 17

3.1.3 Access to Display Data RAM and Internal Register ..................................................... 17

3.2 Busy Flag .................................................................................................................................... 17

3.3 Display Start Line Register .......................................................................................................... 17

3.4 Column Address Counter ............................................................................................................ 18

3.5 Page Register.............................................................................................................................. 18

3.6 Display Data RAM ....................................................................................................................... 19

3.7 Common Timing Generator ......................................................................................................... 19

3.8 Display Data Latch Circuit ........................................................................................................... 19

3.9 LCD Driver Circuit ....................................................................................................................... 19

3.10 Display Timing Generator.......................................................................................................... 19

3.11 Oscillation Circuit....................................................................................................................... 19

3.12 Reset Circuit .............................................................................................................................. 22

4.0 Commands............................................................................................................................................. 27

4.1 Display ON/OFF .......................................................................................................................... 28

4.2 Display Start Line ........................................................................................................................ 28

4.3 Set Page Address ....................................................................................................................... 28

4.4 Column Address .......................................................................................................................... 28

4.5 Read Status................................................................................................................................. 28

4.6 Write Display Data....................................................................................................................... 29

4.7 Read Display Data ...................................................................................................................... 29

4.8 Select ADC .................................................................................................................................. 29

4.9 Static Drive ON/OFF ................................................................................................................... 29

4.10 Select Duty ................................................................................................................................ 29

4.11 Read Modify Write ..................................................................................................................... 29

4.12 End ............................................................................................................................................ 30

4.13 Reset ......................................................................................................................................... 30

4.14 Save Power (Combined Command).......................................................................................... 30

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