hd66731a01tb0l Renesas Electronics Corporation., hd66731a01tb0l Datasheet - Page 69
hd66731a01tb0l
Manufacturer Part Number
hd66731a01tb0l
Description
Dot-matrix Liquid Crystal Display Controller/driver Supporting Japanese Kanji, Korean Font Display - Hitachi Semiconductor
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.HD66731A01TB0L.pdf
(131 pages)
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HD66730/HD66731
Entry Mode Register (R0)
The entry mode register (Figure 6) includes bits I/D, RM1, and RM0.
I/D: Increments (I/D = 1) or decrements (I/D = 0) the DDRAM address by 1 when a character code is
written into or read out from the DDRAM. When the DDRAM address is incremented by 1, the cursor or
blinking will also shift to the right. This applies to both CGRAM and SEGRAM.
RM1/0: Selects DDRAM, CGRAM, or SEGRAM for access (Table 10).
Table 11
RM1
0
1
1
68
RAM Selection by RM1 and RM0
RM0
0/1
0
1
R/W
0
RS
Selected RAM
Display data RAM (DDRAM)
Character generator RAM (CGRAM)
Segment RAM (SEGRAM)
1
Figure 6 Entry Mode Register
DB7
0
0
0
0
0
I/D RM1
DB0
RM0
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