6-bit mapping 5. 24-bit mapping – Compuprint 4247-L03 Programmer Manua User Manual

Page 99

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Table 4. 6-bit mapping

6 BITS IN 1 BYTE

PRINT HEAD WIRE

DATA BIT

1

2

&

3

0

3

4

&

5

1

6

7

&

8

2

8

9

&

10

3

11

12

&

13

4

13

14

&

15

5

Since bits 6 & 7 are ignored, wires 16-24 are not used. The state (0 or 1) of bits 6 and 7 must be conditioned so as

to make the entire byte fall within the range 20H through 7EH.

Table 5. 24-bit mapping

24 BITS IN 1 BYTE

BYTE

PRINT HEAD WIRE

DATA BIT

1

1

0

2

1

3

2

4

3

5

4

6

5

2

7

0

8

1

9

2

10

3

11

4

12

5

3

13

0

14

1

15

2

16

3

17

4

18

5

4

19

0

20

1

21

2

22

3

23

4

24

5

Chapter 4. ANSI Emulation Commands

83

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