Specifications

SED1230
Series
EPSON 6–23
SED1230 Series
RAM Map (SED1230, SED1231, SED1232)
0123456789ABCDEF
0 0 H C G R A M ( 0 0 H ) – C G R A M ( 0 1 H ) –
1 0 H C G R A M ( 0 2 H ) – C G R A M ( 0 3 H ) –
2 0 H Unused
3 0 H DDRAM line 1 Unused
4 0 H DDRAM line 2 For signals "
5 0 H DDRAM line 3 "
6 0 H DDRAM line 4 "
7 0 H Symbol register "
– : Unused
For signals : Output from SEGS2 to SEGS6.
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(9) Data Write
1
This command writes data into the DD RAM, CG
RAM or symbol register.
2
After this command is executed, the address coun-
ter is automatically incremented by 1. This permits
writing data in succession.
<Example of Data Writing>
The following is an example of writing one-line
data into the DD RAM in succession.
0123456789ABCDEF
0 0 H C G R A M ( 0 0 H ) – C G R A M ( 0 1 H ) –
1 0 H C G R A M ( 0 2 H ) – C G R A M ( 0 3 H ) –
2 0 H Unused
3 0 H DDRAM line 1
4 0 H DDRAM line 2
5 0 H DDRAM line 3
6 0 H DDRAM line 4
7 0 H Symbol register
–: Unused
RAM Map (SED1233)
Data Writing
NO
YES
One Line Completed?
RAM Address Set
Note: When executing
instructions in
succession, reserve a
time exceeding t
CYC
and execute the next
instruction.
A0 WR D7 D6 D5 D4 D3 D2 D1 D0
10
DATA