G-TIME
Electronic Co., Ltd.
Function Listing
Operation
Read
Write
Command Write
ID
110
101
100
Address
A5-A0
A5-A0
Data
D0-D3
D0-D3
GT9128
Segment-type 32x4 LCD Driver
Function Table & Descriptions
Comments
Read Data from the display RAM.
Write Data to The RAM.
See command operations
Command operations
Function
CHIP DISABLE
OSC ENABLE 1
OSC ENABLE 2
LCD OFF
LCD ON
BIAS & DUTY
TONE OFF
TONE ON
TONE 2K
TONE 4K
BEEPER OFF
BEEPER ON
TIMER DIS
TIMER EN
CLR TIMER
TOUT DUTY
TOUT DUTY
TOUT 0.5
TOUT 1
TOUT 2
TOUT 4
TOUT 8
TOUT 16
TOUT 16K
TOUT 32K
ID
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
Command Code
1000-01X0-X
1000-10X0-X
1001-01X0-X
1010-1101-X
1010-1111-X
1010-xyz0-X
1011-0000-X
1011-0010-X
1011-0110-X
1011-0100-X
1011-1X10-X
1011-1X00-X
1100-1000-X
1100-1001-X
1100-1011-X
1100-110X-X
1100-111X-X
1100-0000-X
1100-0001-X
1100-0010-X
1100-0011-X
1100-0100-X
1100-0101-X
1100-0110-X
1100-0111-X
Description
Turn off oscillator and LCD bias generator ( Default )
System oscillator enable 1
System oscillator enable 2
Turn off LCD bias generator
Turn on LCD bias generator
xy={0,1,2}
: {1/2,1/3,1/4}duty;
z={0,1}:
{1/3,1/2}bias
Turn off tone outputs
Turn on tone outputs
Tone frequency, 2kHz
Tone frequency, 4kHz
Beeper disable
Beeper enable
Disable time base output
Enable time base output
Clear the contents of time base generator
TOUT 50/50 Duty
1/128 duty of TOUT ( not including TOUT 16K and 32K )
TOUT output 0.5Hz cycle
TOUT output 1Hz cycle
TOUT output 2Hz cycle
TOUT output 4Hz cycle
TOUT output 8Hz cycle
TOUT output 16Hz cycle
TOUT output 16kHz cycle
TOUT output 32kHz cycle
G-TIME Electronic Co., Ltd.,
reserves the right to change products or specifications without notice.
錚?003
G-TIME Electronic Co., Ltd.,
G-TIME
is a trademark of
G-TIME Electronic Co., Ltd.,
GT9128
Rev. 1.01
March 2003
8