7220 datasheet(107/303 Pages) RENESAS

107 / 303 page

2-80

7220 Group User’s Manual

FUNCTIONAL DESCRIPTION

2.11 CRT display function

Not used

Display position (from left side)

1st character

2nd character

3rd character

22nd character

23rd character

24th character

1st character

2nd character

3rd character

22nd character

23rd character

24th character

068016

068116

068216

069516

069616

069716

069816

069F16

06A016

06A116

06A216

06B516

06B616

06B716

(2)

CRT display RAM (addresses 060016 to 06B716)

CRT display RAM is assigned to addresses 060016 to 06B716, and is divided into a display character

code specification part and display color specification part for each block. Table 2.11.4 shows the

contents of CRT display RAM.

For example, to display a character at the first character position (leftmost) in block 1, it is necessary

to write the character code in address 060016 and the color register No. to the low-order 2 bits (bits

0 and 1) at address 068016. The color register No. to be written here is one of the 4 color registers

in which display color is set in advance. For details on color registers, refer to “2.11.4 Color registers.”

Table 2.11.4 Contents of CRT display RAM

Block number

Block 1

Block 2

Character code specifying

060016

060116

060216

061516

061616

061716

061816

061F16

062016

062116

062216

063516

063616

063716

Color specifying

7220 Datasheet(PDF) 107 Page - Renesas Technology Corp

7220 Datasheet(HTML) 107 Page - Renesas Technology Corp

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 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL