Specifications

EPSON 8–33
SED1240 Series
SED1240
Series
• Example of display (compared by the same mounting method)
RAM address set (1) [DDRAM, static icon
RAM, electronic volume RAM]
Function: Sets the address for writing data into the
DDRAM, static icon RAM (including blink
control), and electronic volume RAM in the
address counter. When the cursor appears, it
is displayed at the display position
corresponding to the DDRAM address set by
this command. (When the static icon RAM
or electronic volume RAM is specified, the
cursor disappears on the display.)
1 The settable address is the address 00H to 7FH in D6
to D0.
2 When writing data in the RAM, set the address for
writing data by this command. Next, when data is
written in succession, the address will be automatically
incremented. (00H to 7FH → 00H)
3 RE = 0, 09H is for testing. Be sure not to use it!
(SS, CS) = (0, 0) (SS, CS) = (1, 0) (SS, CS) = (0, 1) (SS, CS) = (1, 1)ROM font
RAM address set (2) [CGRAM, symbol register
RAM]
Function: Sets the address for writing data into the
CGRAM or symbol register RAM in the
address counter.
When the CGRAM address is set, the cursor
will disappear on the display. When the
symbol register RAM is set, the cursor moves
to the corresponding symbol position, causing
this symbol to blink selectively.
When the cursor home command is executed
immediately after execution of this instruction
(before execution of RAM Address Set (1)),
the cursor will not be displayed. (Because
the address is set at address 30H of RE-1 of
the RAM map.)
1 The settable address of the address of 00H to 7FH in
D6 to D0.
2 When writing data in the RAM, set the address for
writing data by this command. Next, if data is written
in succession, the address will be automatically
incremented. (00H to 7FH → 00H)
3 RE = 1, 30H - 5FH i8s set to No Use. It is not
available.
RE A0 WR D7 D6 D5 D4 D3 D2 D1 D0
0 0 0 1 ADDRESS
RE A0 WR D7 D6 D5 D4 D3 D2 D1 D0
1 0 0 1 ADDRESS