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参数资料
| 型号： | SSD1815T2R |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | SEMICONDUCTOR TECHNICAL DATA |
| 中文描述： | 半导体技术数据 |
| 文件页数： | 18/35页 |
| 文件大小： | 856K |
| 代理商： | SSD1815T2R |
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SSD1815
18
REV 1.5
03/2000
S OLOMON
entered after the power save compound command. See “Set
Power Save Mode”.
When the “Set Indicator On” command is sent, the “Indicator
Display Mode” must be followed in the next command. The “Set
Indicator Off” command is a single byte command and no fol-
lowing command is required.
NOP
A command causing No Operation.
Set Test Mode
This command force the driver chip into its test mode for
internal testing of the chip. Under normal operation, user should
NOT use this command.
Set Power Save Mode
To enter Standby or Sleep Mode, it should be done by using
a compound command composed of “Set Display ON/OFF” and
“Set Entire Display ON/OFF” commands. When “Set Entire Dis-
play ON” is issued when display is OFF, either Standby Mode
or Sleep Mode will be entered.
The status of the Static Indicator will determine which power
save mode is entered. If static indicator is off, the Sleep Mode
will be entered:
1.Internal oscillator and LCD power supply circuits are
stopped
2.Segment and Common drivers output V
DD
level
3.The display data and operation mode before sleep are
held
4.Internal display RAM can still be accessed
If the static indicator is on, the chip enters Standby Mode
which is similar to sleep mode except:
1.Internal oscillator is on
2.Static drive system is on
Note also that if the software reset command is issued during
Standby Mode, Sleep Mode will be entered. Both power save
modes can be exited by the issue of a new software command
or by pulling Low at hardware pin RES.
Status register Read
This command is issued by pulling D/C Low during a data read
(refer to Figure 9 and 10 for parallel interface waveforms). It al-
lows the MCU to monitor the internal status of the chip. No status
read is provided for serial mode.
EXTENDED COMMANDS
These commands are used, in addition to basic commands, to
trigger the enhanced features, on top of general ones, designed
for the chip.
Set Multiplex Ratio
This command switches default 64 multiplex mode to any
multiplex mode from 2 to 64. The chip pads ROW0-ROW63 will
be switched to corresponding COM signal output, see Table 1
for examples of different multiplex settings.
Set Bias Ratio
Except the 1/4 bias, all the available bias ratios (1/5, 1/6, 1/7,
1/8 and 1/9) could be set using this command plus the Set LCD
Bias. When changing the display multiplex ratio, the bias ratio
also need to be adjusted to make display contrast consistent.
Set Temperature Coefficient (TC) Value
4 different temperature coefficient settings is selected by this
command in order to match various liquid crystal temperature
grades.
Modify Oscillator Frequency
The oscillator frequncy can be fine tuned by applying this com-
mand. Since the oscillator frequency will be affected by some
other factors, this command is not recommended for general
usage. Please contact our application engineer for more detail
explaination on this command.
Set 1/4 Bias Ratio
This command sets the bias ratio directly to 1/4 bias. This ratio
is especially for use in under 12mux display.
In order to restore to other bias ratio, this command must be
executed, with LSB=0, before the “Set Multiplex ratio” or “Set
LCD Bias” command is sent.
Set Total Frame Phases
The total number of phases for one display frame is set by this
command.
The Static Icon is generated by the overlapping of the M and
MSTAT signals. To turn on the Static Icon, 3 phases overlapping
will be applied to these signals, while 1 phase overlapping will be
given to the Off status.
The more the total number of phasesin one frame, the less the
overlapping time and thus the lower the effective driving voltage
at the Static Icon on the LCD panel.
Set Display Offset
This command should be sent ONLY when the multiplex ratio
is set less than 64.
When the mulitplex ratio less than 64 is set, the display will be
mapped in the middle (y-direction) of the LCD, see Table 1. Use
this command could move the display vertically within the 64 com-
mons.
To make the Reduced-Mux Com 0 (Com 0 after reducing the
multiplex ratio) towards the Row 0 direction for L lines, the 6-bit
data in second command should be given by L.
To move in the other direction by L lines, the 6-bit data should
be given by 64-L.
Please note that the display is confined within the un-reduced
64 mux. That is maximum value of L is given by the half of 64 mi-
nus the reduced-multiplex ratio. For an odd display mux after re-
duction, moving away from Row 0 direction will has 1 more step.
相关PDF资料 |
PDF描述 |
|---|---|
| SSD1815T3R | SEMICONDUCTOR TECHNICAL DATA |
| SSD1815TR | SEMICONDUCTOR TECHNICAL DATA |
| SSD1815Z | SEMICONDUCTOR TECHNICAL DATA |
| SSD1818A | LCD Segment / Common Driver with Controller |
| SSD1818ATR1 | LCD Segment / Common Driver with Controller |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SSD1815T3R | 制造商:未知厂家 制造商全称:未知厂家 功能描述:SEMICONDUCTOR TECHNICAL DATA |
| SSD1815TR | 制造商:未知厂家 制造商全称:未知厂家 功能描述:SEMICONDUCTOR TECHNICAL DATA |
| SSD1815Z | 制造商:未知厂家 制造商全称:未知厂家 功能描述:SEMICONDUCTOR TECHNICAL DATA |
| SSD1818 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:LCD Segment / Common Driver with Controller |
| SSD1818A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:LCD Segment / Common Driver with Controller |
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