ML9286-03 Datasheet, PDF (15/37 Pages) List of Unclassifed Manufacturers – Vacuum fluorescent display tube controller driver

FEDL9286-03
ML9286-xx
DESCRIPTION OF COMMANDS AND FUNCTIONS
1. DCRAM data write
(Specifies the addresses 00H to 1FH of DCRAM and writes the character codes of CGROM and CGRAM.)
DCRAM (Data Control RAM) has a 5-bit address to store the character codes 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 24 timing.)
[Command format]
1st byte
(1st)
2nd byte
(2nd)
LSB
MSB
B0 B1 B2 B3 B4 B5 B6 B7
X0 X1 X2 X3 X4 1 0 0
LSB
MSB
B0 B1 B2 B3 B4 B5 B6 B7
C0 C1 C2 C3 C4 C5 C6 C7
: selects DCRAM data write mode and specifies DCRAM
address
(Ex: Specifies DCRAM address 00H.)
: specifies the character codes of CGROM and CGRAM
(written into DCRAM address 00H)
To specify the character code of CGROM and CGRAM continuously to the next address, specify only character
codes as follows.
The addresses of DCRAM are automatically incremented. Specification of an address is unnecessary.
2nd byte
(3rd)
2nd byte
(4th)
LSB
MSB
B0 B1 B2 B3 B4 B5 B6 B7
C0 C1 C2 C3 C4 C5 C6 C7
LSB
MSB
B0 B1 B2 B3 B4 B5 B6 B7
C0 C1 C2 C3 C4 C5 C6 C7
: specifies the character codes of CGROM and CGRAM
(written into DCRAM address 01H)
: specifies the character codes of CGROM and CGRAM
(written into DCRAM address 02H)
2nd byte
(25th)
LSB
MSB
B0 B1 B2 B3 B4 B5 B6 B7
C0 C1 C2 C3 C4 C5 C6 C7
: specifies the character codes of CGROM and CGRAM
(written into DCRAM address 17H)
After the character code setting up to 24 timing is completed, to set a character code from DCRAM address 00H
continuously, set a dummy character code to DCRAM addresses between 18H and 1FH.
(DCRAM address is incremented automatically up to 1FH and after return to 00H)
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