msm9202 Oki Semiconductor, msm9202 Datasheet - Page 16

• Manufacturer Part Number: msm9202
• Description: 5 7 Dot Character 16-digit Display Controller/driver With Character Ram
• Manufacturer: Oki Semiconductor

¡ Semiconductor
Description of Commands and Functions
1. DCRAM data write
DCRAM (Data Control RAM) has a 4-bit address to store character code of CGROM and
CGRAM.
The character code specified by DCRAM is converted to a 5¥7 dot matrix character pattern via
CGROM or CGRAM.
(The DCRAM can store 16 characters.)
[Command format]
To specify the character code of CGROM and CGRAM continuously to the next address, specify
only character code as follows.
The addresses of DCRAM are automatically incremented. Specification of an address is
unnecessary.
2nd byte
1st byte
(Specifies the address of DCRAM and writes the character code of CGROM and CGRAM.)
(2nd)
(1st)
LSB
LSB
B0 B1 B2 B3 B4 B5 B6 B7
X0 X1 X2 X3
B0 B1 B2 B3 B4 B5 B6 B7
C0 C1 C2 C3 C4 C5 C6 C7
1
0
0
MSB
MSB
0
: selects DCRAM data write mode and specifies DCRAM
: specifies character code of CGROM and CGRAM
address
(Ex: Specifies DCRAM address 0H)
(written into DCRAM address 0H)
FEDL9202-04
MSM9202-01
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