Table 2.11.4 Contents Of Crt Display Ram - Renesas 7200 Series User Manual

FUNCTIONAL DESCRIPTION
2.11 CRT display function
(2) CRT display RAM (addresses 0600
CRT display RAM is assigned to addresses 0600
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 0600
0 and 1) at address 0680
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 Display position (from left side)
Block 1
Not used
Block 2
2-80
to 06B7
16
. The color register No. to be written here is one of the 4 color registers
16
1st character
2nd character
3rd character
:
22nd character
23rd character
24th character
1st character
2nd character
3rd character
:
22nd character
23rd character
24th character
7220 Group User's Manual
)
16
to 06B7 , and is divided into a display character
16 16
and the color register No. to the low-order 2 bits (bits
16
Character code specifying
0600
16
0601
16
0602
16
:
0615
16
0616
16
0617
16
0618
16
to
061F
16
0620
16
0621
16
0622
16
:
0635
16
0636
16
0637
16
Color specifying
0680
16
0681
16
0682
16
:
0695
16
0696
16
0697
16
0698
16
:
069F
16
06A0
16
06A1
16
06A2
16
:
06B5
16
06B6
16
06B7
16