SBN1661G_M18 Datasheet, PDF (22/52 Pages) List of Unclassifed Manufacturers – Dot-matrix STN LCD Driver with 32-row x 80-column Display Data Memory

Avant Electronics SBN1661G_M18, SBN1661G_M02, SBN0080G_S18, SBN0080G_S02
Dot-matrix STN LCD Driver with 32-row x 80-column
7.5 Column address and the Column Address Register
The Column Address Register points at a column of the Display Data Memory which the host microcontroller intends to
perform a READ/WRITE operation. The Column Address Register automatically increments by 1 after a READ or WRITE
operation is finished. When the Column Address Register reaches 79, it overflows to 0. Please refer to Fig.12 for the
column sequence in a page of the Display Data Memory.
To program this register, the setting of the control bus is given in Table 16 and the setting of the data bus is given in Table
17.
Table 16 The setting of the control bus for programming the Column Address Register
C/D
E/(RD)
R/W(WR)
0
1
0
Table 17 The setting of the data bus for programming the Column Address Register
D7(MSB)
D6
D5
D4
D3
D2
D1
D0(LSB)
0
A6
A5
A4
A3
A2
A1
A0
A6~A0 are column address bits and can be programmed with a value in the range from 0 to 79. Therefore, the code can
be from 0000 0000 (00 Hex) to 0100 1111 (4F Hex).
2006 Aug 16
22 of 52
data sheet (v6.3)