參數(shù)資料
型號: M34556M8-XXXFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO42
封裝: 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件頁數(shù): 89/147頁
文件大?。?/td> 1087K
代理商: M34556M8-XXXFP
Rev.3.02
Dec 22, 2006
page 44 of 142
REJ03B0025-0302
4556 Group
Table 12 LCD control registers (1)
Internal dividing resistor for LCD power
supply selection bit (Note 2)
LCD control bit
LCD control register L1
L13
L12
L11
L10
at reset : 00002
at power down : state retained
0
1
0
1
L11
0
1
L10
0
1
0
1
Duty
1/2
1/3
1/4
Bias
1/2
1/3
LCD control register L2
at reset : 00002
at power down : state retained
W
TL2A
0
1
0
1
0
1
0
1
SEG0
VLC3
SEG1
VLC2
SEG2
VLC1
Internal dividing resistor valid
Internal dividing resistor invalid
L23
L22
L21
L20
SEG0/VLC3 pin function switch bit (Note 3)
SEG1/VLC2 pin function switch bit (Note 4)
SEG2/VLC1 pin function switch bit (Note 4)
Internal dividing resistor for LCD power
supply control bit
2r 3, 2r 2
r 3, r 2
Stop
Operating
Not available
LCD control register L3
at reset : 11112
at power down : state retained
W
TL3A
0
1
0
1
0
1
0
1
SEG20
P23
SEG19
P22
SEG18
P21
SEG17
P20
L33
L32
L31
L30
P23/SEG20 pin function switch bit
P22/SEG19 pin function switch bit
P21/SEG18 pin function switch bit
P20/SEG17 pin function switch bit
R/W
TAL1/TL1A
LCD duty and bias selection bits
Notes 1: “R” represents read enabled, and “W” represents write enabled.
2: “r (resistor) multiplied by 3” is used at 1/3 bias, and “r multiplied by 2” is used at 1/2 bias.
3: VLC3 is connected to VDD internally when SEG0 pin is selected.
4: Use internal dividing resistor when SEG1 and SEG2 pins are selected.
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