S6B0715 Просмотр технического описания (PDF) - Samsung

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S6B0715

33 COM / 100 SEG DRIVER & CONTROLLER FOR STN LCD

Samsung 

S6B0715

33 COM / 100 SEG DRIVER & CONTROLLER FOR STN LCD

MICROPROCESSOR INTERFACE

Table 6. Microprocessor Interface Pin Description

Name

RESETB

PS

MI

CS1B

CS2

RS

RW_WR

I/O

Description

I

Reset input pin

When RESETB is “L”, initialization is executed.

Parallel / serial data input select input

PS

Interface

mode

Chip

Data /

select instruction

Data

Read / write Serial clock

I

H

Parallel

CS1B,

CS2

RS

DB0 to DB7

E_RD

RW_WR

-

L

Serial

CS1B,

CS2

RS

SID (DB7) Write only SCLK (DB6)

*NOTE: When PS is “L”, DB0 to DB5 a re high impedance and E_RD and RW_WR

should be fixed to either “H” or “L”.

Microprocessor interface select input pin

I

− MI = "H": 6800-series MPU interface

− MI = "L": 8080-series MPU interface

Chip select input pins

I

Data / instruction I/O is enabled only when CS1B is “L” and CS2 is “H”.

When chip select is non-active, DB0 to DB7 may be high impedance.

Register select input pin

I

− RS = "H": DB0 to DB7 are display data.

− RS = "L": DB0 to DB7 are control data.

Read / Write execution control pin

MI MPU type RW_WR

Description

Read/Write control input pin

H 6800-series

RW

− RW = “H”: read

I

− RW = “L”: write

L 8080-series

Write enable clock input pin

/WR

The data on DB0 to DB7 are latched at the rising

edge of the /WR signal.

9

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