EF9345 Datasheet, PDF (30/38 Pages) STMicroelectronics – HMOS2 SINGLE CHIP SEMI-GRAPHIC DISPLAY PROCESSOR

EF9345
Figure 29 : 80 Char/Row Character Code Packing
76543210
C
PACKING 2 CODES
IN 3 BYTES
IN MEMORY
A
76543210
B (even)
C
B +1
A
B +2
EVEN POSITION
ODD POSITION
Figure 30 : KRL Command : Sequential Access to Long Codes
KRL Command
R1 C
R2 -
R3 A
D district
number
B
even
Even
position
R4 -
R5 -
R6 D, Y
R7 B, X _Y
B +1
odd
Odd
position
A
B +2
X
76 54321 0
R3 N F U D N F U D
The A nibble should be respected
30/38