•

The colors of the characters and background can be stored in a single location in the 2-color attribute table, in location ATT0.

•

The data shown in Table 10 is sent to the LM1237 in one I

TABLE 10. Example 1 Data Transmission

Data Sent

Description

RAM Address

I

0xBA

Chip address (See the Microcontroller Interface Section)

0x00

Address LSB

0x80

Address MSB

0x00

Use Attribute table 00 for the following characters

0x00

Skip 0 lines Command

8000

0x02

Character “A”

8001

0x03

Character “B”

8002

0x04

Character “C”

8003

0x01

Row-End (RE) Command

8004

0x00

Skip 0 lines

8005

0x05

Character “D”

8006

0x06

Character “E”

8007

0x07

Character “F”

8008

0x01

Row-End (RE) Command

8009

0x00

Skip 0 lines Command

800A

0x08

Character “G”

800B

0x09

Character “H”

800C

0x0A

Character “I”

800D

0x00

Window-End (WE) Command

800E

I

EXAMPLE 2:

A 3x3 character matrix of characters on a black background is to be displayed on the screen, using 2-color character codes. 2

skipped lines are required below the first line of characters, 3 skipped lines are required below the second line of characters, and

4 skipped lines are required below the third line of characters. The first line of characters will use color attribute 0, the second line

will use color attribute 1, the third line will use color attribute 0 for the first character, color attribute 1 for the second character, and

color attribute 2 for the third character. This is shown in Figure 22.

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