ST7565 查看數據表（PDF） - Unspecified

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产品描述 (功能)

生产厂家

ST7565

Dot Matrix LCD Controller/Driver

Unspecified 

ST7565

DESCRIPTION OF FUNCTIONS

The MPU Interface

Selecting the Interface Type

With the ST7565 chips, data transfers are done through an

8-bit parallel data bus (D7 to D0) or through a serial data

input (SI). Through selecting the P/ S terminal polarity to the

“H” or “L” it is possible to select either parallel

data input or serial data input as shown in Table 1.

Table 1

P/S

CS1

CS2

A0

RD

WR

C86

D7

D6

D5~D0

H: Parallel Input /CS1

CS2

A0

/RD

/WR

C86

D7

D6

D5~D0

L: Serial Input

/CS1

CS2

A0

—

—

—

SI

SCL

(HZ)

“—” indicates fixed to either “H” or to “L”

The Parallel Interface

When the parallel interface has been selected (P/S =“H”),

then it is possible to connect directly to either an

8080-system MPU or a 6800 Series MPU (shown in Table 2)

by selecting the C86 terminal to either “H” or to “L”.

C86 (P/S=H)

Table 2

CS1

CS2

A0

/RD

/WR D7~D0

H: 6800 Series

L: 8080 Series

/CS1 CS2

A0

E

R/W D7~D0

/CS1 CS2

A0

/RD

/WR D7~D0

Moreover, data bus signals are recognized by a combination

of A0, /RD (E), /WR (R/W) signals, as shown in Table 3.

Shared

A0

1

1

0

0

6800 Series

R/W

1

0

1

0

Table 3

8080 Series

/RD

/WR

0

1

1

0

0

1

1

0

Function

Reads the display data

Writes the display data

Status read

Write control data (command)

Ver 1.0a

12/56

2002/06/24

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