Atari 400

Shift
Register
CHBASE
l
I
I
r
I
Character Display
(20 Character per line mode example)
Codes (names)
Stored in
Shift Register
F
Color
Register
Select
I
not
.............
v
I
X
I
__ :; _ ____..
I
Address portion of
Character name
used
..,.....,
v
I
Character
Data Address
Character Set
in Memory
w
y
Addresses data in
character set
displays on the
Color assigned
by color register
selected
II .14
z
'\
I
Internal
codes for
characters
in memory
F
X
z
0
1 TV
2 Scan
3 Lines
4
5
6
7
/