msm9202 Oki Semiconductor, msm9202 Datasheet - Page 18

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

¡ Semiconductor
2. CGRAM data write
[Command format]
To specify character pattern data continuously to the next address, specify only character pattern
data as follows.
The addresses of CGRAM are automatically incremented. Specification of an address is
therefore unnecessary.
The 2nd to 6th byte (character pattern data) are regarded as one data item, so 300 ns is sufficient
for t
CGRAM (Character Generator RAM) has a 3-bit address to store 5¥7 dot matrix character
patterns.
A character pattern stored in CGRAM can be displayed by specifying the character code
(address) by DCRAM.
The address of CGRAM is assigned to 00H to 07H. (All the other addresses are the CGROM
addresses.)
(The CGRAM can store 8 types of character patterns.)
(Specifies the addresses of CGRAM and writes character pattern data.)
DOFF
2nd byte
3rd byte
4th byte
5th byte
6th byte
1st byte
(2nd)
(3rd)
(4th)
(5th)
(6th)
(1st)
time between bytes.
LSB
LSB
LSB
LSB
LSB
LSB
B0 B1 B2 B3 B4 B5 B6 B7
X0 X1 X2
B0 B1 B2 B3 B4 B5 B6 B7
C0 C5 C10 C15 C20 C25 C30
B0 B1 B2 B3 B4 B5 B6 B7
C1 C6 C11 C16 C21 C26 C31
B0 B1 B2 B3 B4 B5 B6 B7
C2 C7 C12 C17 C22 C27 C32
B0 B1 B2 B3 B4 B5 B6 B7
C3 C8 C13 C18 C23 C28 C33
B0 B1 B2 B3 B4 B5 B6 B7
C4 C9 C14 C19 C24 C29 C34
*
0
1
0
MSB
MSB
MSB
MSB
MSB
MSB
*
*
*
*
*
0
: selects CGRAM data write mode and specifies
: specifies 1st column data
: specifies 2nd column data
: specifies 3rd column data
: specifies 4th column data
: specifies 5th column data
CGRAM address.
(Ex: specifies CGRAM address 00H)
(rewritten into CGRAM address 00H)
(rewritten into CGRAM address 00H)
(rewritten into CGRAM address 00H)
(rewritten into CGRAM address 00H)
(rewritten into CGRAM address 00H)
FEDL9202-04
MSM9202-01
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