ML9058E datasheet(20/76 Pages) ETC2

20 / 76 page

FEDL9058E-01

LAPIS Semiconductor

ML9058E

20/76

FUNCTIONAL DESCRIPTION

MPU Interface

MPU

Read mode

Write mode

80-Series

Pin RD = “L”

Pin WR = “L”

Pin R/W = “H”

Pin R/W = “L”

68-Series

Pin E = “H”

In the case of the 80-series MPU interface, a command is started by applying a low pulse to the RD pin or the WR

pin.

In the case of the 68-series MPU interface, a command is started by applying a high pulse to the E pin.

 Selection of interface type

The ML9058E carries out data transfer using either the 8-bit bi-directional data bus (DB0 to DB7) or the serial data

input line (SI). Either the 8-bit parallel data input or serial data input can be selected as shown in Table 2 by setting

the P/S pin to the “H” or the “L” level.

Table 2 Selection of interface type (parallel/serial)

P/S

CS1

CS2

C86

DB0 to DB5

H: Parallel input

L: Serial input

CS1

CS2

—

C86

—

SCL

DB0 to DB5

—

A hyphen (—) indicates that the pin can be tied to the “H” or the “L” level.

 Parallel interface

When the parallel interface is selected, (P/S = “H”), it is possible to connect this LSI directly to the MPU bus of

either an 80-series MPU or a 68-series MPU as shown in Table 3. depending on whether the pin C86 is set to “H”

or “L”.

Table 3 Selection of MPU during parallel interface (80–/68–series)

C86

CS1

CS2

DB0 to DB7

H: 68-Series MPU bus

L: 80-Series MPU bus

CS1

CS2

R/W

DB0 to DB7

The data bus signals are identified as shown in Table 4 below depending on the combination of the signals A0, RD

(E), and WR (R/W) of Table 3.

Table 4 Identification of data bus signals during parallel interface

Common

68-Series

80-Series

R/W

Display data read

Display data write

Status read

Control data write (command)

ML9058E Datasheet(PDF) 20 Page - List of Unclassifed Manufacturers

ML9058E Datasheet(HTML) 20 Page - List of Unclassifed Manufacturers

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76

Datasheet Download

Link URL