参数资料
型号: MC68HC705CL16
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 1.802 MHz, MICROCONTROLLER, PQFP100
封装: TQFP-100
文件页数: 7/145页
文件大小: 673K
代理商: MC68HC705CL16
GENERAL RELEASE SPECIFICATION
June 11, 1997
MOTOROLA
LCD DRIVER
MC68HC05CL48
12-8
REV 2.0
12.4
LCD CONTROL REGISTER (LCDCR)
DISON - BIT 0
1 =
The Display is on when this bit is ’1’ and
0 =
off when this bit is ’0’. Setting this bit to ’0’ also disconnects the
voltage generator resistor chain from VSS, thus reducing power.
BIAS5 - Bits 2
1 =
Select 5:1 bias voltage levels.
0 =
Select 4:1 bias voltage levels.
MX8 - bit 3
1 =
the system operates with 53 frontplanes and 8 backplanes,
0 =
the system operates with 45 frontplanes and 16 backplanes.
CC0 - CC3 - bits 4,5,6,7
These bits can be used to select the values of the contrast control resistors.
1 =
the corresponding resistor will be shorted. On reset these bits are
set to 1.
Table 12-3. LCD Voltage Characteristic
VLCD=5.0volts
4:1 bias Voltage (volts)
Typical Values
5:1 bias Voltage (volts)]
Typical Values
V5
5.0
V4
3.75
4.0
V3
2.5
3.0
V2
2.5
2.0
V1
1.25
1.0
V0
0.0
76543210
LCDCR
$0007
READ
CC3
CC2
CC1
CC0
MX8
BIAS5
DISON
WRITE
RESET
111100
-
0
U = UNAFFECTED
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