RA6963
Preliminary Version 1.3
Dot Matrix LCD Controller
Data Bit 0
0 : Normal
1 : Reverse
Don’t care If Frame = 60Hz
(Note) Data Bit 2:0
000 : 0.066s
01010000
Data
Blink Time
001 : 0.25s
010 : 0.5s (Default)
011 : 0.75s
100 : 1s
101 : 1.25s
110 : 1.5s
111 : 2s
Don’t care Data Bit 0
(Note) 0 : Disable.(Default)
1 : Enable.
Don’t care Data Bit 1:0
(Note) 00 : Do not care.(Default)
Cursor Auto Moving
CGROM Font Select
01100000
01110000
Data
Data
01 : Do not care.
10 : CGROM Font-01.
11 : CGROM Font-02.
Note： In these functions, it must be sent two data before sending the command, but the contents of
the second datum (D2) can be any values.
6-6 Setting Registers
< Table 6-6 >
Function
Code
Hex.
21h
22h
24h
D1
D2
Y-Adrs
00h
00100001
00100010
00100100
Set Cursor Pointer
Set Offset Register
Set Address Pointer
X-Adrs
Data
Low Adrs
High Adrs
6-6-1 Set Cursor Pointer
The X-Adrs and Y-Adrs specify the position of the cursor. The cursor position can only be moved
by this command. Data read /write from the MPU never changes the cursor pointer. X-Adrs and Y-
Adrs are specified as follows.
X-Adrs
Y-Adrs
00h to 4Fh (lower 7 bits are valid)
00h to 1Fh (lower 5 bits are valid)
a) Single-Scan
b) Dual-Scan
X-Adrs 00h to 4Fh
X-Adrs 00h to 4Fh
Y-Adrs 00h to 0Fh
Y-Adrs 00h to 0Fh
Upper Screen
Y-Adrs 10h to 1Fh
Lower Screen
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