參數(shù)資料
型號(hào): EM78P468NH
廠商: ELAN Microelctronics Corp .
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁(yè)數(shù): 18/82頁(yè)
文件大小: 1491K
代理商: EM78P468NH
EM78P468N
8-BIT Microcontroller
14
Product Specification (V1.2) 03.15.2005
(This specification is subject to change without further notice)
4.1
r)
.10 R9/LCDCR (LCD Control Registe
(Address: 09h)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
BS
DS1
S
LCDF0
D 0
LCDEN
--
LCDTYPE LCDF1
Bit 7 (
LCD bias
ct bit,
1/2 bias
B
“1”:
1/3 bias
Bit 6 ~ 5 (DS1 ~ DS
DS1
LCD dut select
DS0
BS):
sele
BS = “0”:
S =
0):
y
LCD d
y
ut
0
0
1/2 duty
0
1
1/3 duty
1
X
1/4 duty
Bit
it
DEN =
(GND) level
” :
LCD
“0
cuit disa
cir
. all
/s
nd
LCD circuit enable.
TY
0” :
DTYP
“1” :
B type waveform
me frequency control bits
LCD frame frequency (e.g. Fs=32.768KHz)
1/2 duty
1/3 duty
4 (LCDEN) :
LCD enable b
LC
ble
common egment outputs are set to grou
LCDEN = “1” :
Bit 3:
Not used
Bit 2 (LCDTYPE) :
LCD drive waveform type select bit
LCD
PE = “
A type waveform
LC
E =
Bit 1 ~ 0(LCDF1 ~ LCDF0):
LCD fra
LCDF1
LCDF0
1/4 duty
0
0
Fs/(256*2)=64.0
Fs/(172*3)=63.5
Fs/(128*4) =64.0
0
.0
Fs/(140*4) =58.5
1
Fs/(280*2)=58.5
Fs/(188*3)=58
1
.5
Fs/(152*4) =53.9
0
Fs/(304*2)=53.9
Fs/(204*3)=53
1
1
Fs/(232*2)=70.6
Fs/(156*3)=70.0
Fs/(116*4) =70.6
Fs: su
4.1.11
b-oscillator frequency
RA/LCD_ADDR (LCD Address)
(Address: 0Ah)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
LCD_A1 LCD_A0
0
0
LCD_A4
LCD_A3
LCD_A2
Bit 7
~ 5:
Not used, fixed to “0”
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