SBN0064G Datasheet, PDF (14/37 Pages) List of Unclassifed Manufacturers – Dot-matrix STN LCD 64-SEGMENT Driver with 64-row x 64-column Display Data Memory

Avant Electronics
SBN0064G
Dot-matrix STN LCD 64-SEGMENT Driver with 64-row x 64-column Display Data Memory
7 REGISTERS
7.1 Registers and their states after hardware RESET
The SBN0064G has 5 registers. Four of them must be programmed by the host microcontroller after hardware reset. The
Status Register can be read by the host microcontroller to check the current status of the SBN0064G.
The registers and their states after RESET is given in Table 5.
Table 5 Registers and their states after RESET
Register Name
Display ON/OFF Register
Display Start Line Register
Page Address Register
Column Address Register
Status Register
Description
States after
RESET
The Display ON/OFF Register is a 1-bit register. After RESET,
its value is LOW and, therefore, the LCD display is turned OFF.
0
The Display Start Line Register is a 6-bit register. After RESET,
its value is 00 0000 and, therefore, Row 0 of the Display Data 00 0000
Memory is mapped to COM0 of LCD panel.
The Page Address Register is a 3-bit register. It point to a page
of the Display Data Memory.
xxx
The Column Address Register is a 6-bit register.
xx xxxx
The Status Register shows the current state of the SBN0064G.
It is a 3-bit register, with each bit showing the status of a
0010 0000
programmed function.
7.2 Display ON/OFF and the Display ON/OFF Register
The Display ON/OFF Register is a 1-bit Register. When this bit is programmed to HIGH, the display is turned ON. When
this bit is programmed to LOW, the display is turned OFF and SEG0 ~ SEG63 outputs are set to V_DD.
To program this register, the setting of control bus is given in Table 6 and the setting of the data bus is given in Table 7.
Table 6 Setting of the control bus for programming the Display ON/OFF Register
C/D
R/W
0
0
Table 7 Setting of the data bus for programming the Display ON/OFF Register
D7(MSB)
D6
D5
D4
D3
D2
D1
D0(LSB)
0
0
1
1
1
1
1
D0
When D0=1, the code is 3F(Hex) and the display is turned ON. When D0=0, the code is 3E(Hex) and the display is turned
OFF.
2005 May 20
14 of 37
data sheet (v3)