APU0071-002WE-TY Просмотр технического описания (PDF) - Anpec Electronics

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APU0071-002WE-TY

80 Segment / 16 Common Controller for Dot Matrix LCD

Anpec Electronics 

APU0071

5. CHARACTER GENERATOR RAM (CGRAM)

CGRAM is used for user defined character pattern. The format of the character pattern is 5 × 7 dots

except for the cursor position and has a maximum of 4 characters. To use the character pattern in

CGRAM write the character code into DDRAM as shown in table 2.

Table 2. Relationship between character Code (DDRAM) and Character Pattern (CGRAM)

Character Code ( DDRAM data )

76543210

0 0 0 0 ∗∗0 0

CGRAM address

43210

00000

00001

00010

00011

00100

00101

00110

00111

CGRAM data

43210

01110

10001

10001

11111

10001

10001

10001

00000

Pattern

Number

Pattern 1

cursor position

0 0 0 0 ∗∗0 0 1 1 0 0 0 1 1 1 1 0

1100110001

1101010001

1101110001

Pattern 4

1110010001

1110110001

1111011110

1111100000

cursor position

Note : The asterisk means "don't care".

Copyright  ANPEC Electronics Corp.

8

Rev. A.07 - FEB., 2002

www.anpec.com.tw

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