參數(shù)資料
型號(hào): M34559G6
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述: 單芯片4位微機(jī)的CMOS
文件頁數(shù): 43/148頁
文件大小: 1732K
代理商: M34559G6
Rev.1.04
REJ03B0188-0104
Aug 23, 2007
Page 43 of 146
4559 Group
LCD FUNCTION
The 4559 Group has an LCD (Liquid Crystal Display) controller/
driver. When data are set in LCD RAM and timer LC, LCD
control registers (L1, L2, L3, C1, C2, C3), and timer control
registers (W3, W4), the LCD controller/driver automatically
reads the display data and controls the LCD display by setting
duty and bias.
4 common signal output pins and 32 segment signal output pins
can be used to drive the LCD. By using these pins, up to 128
pixels (when internal power, 1/4 duty and 1/3 bias are selected)
can be controlled to display. When using the external input, set
necessary pins with the LCD control register 2 and apply the
proper voltage to the pins .
The LCD power input pins (V
LC3
–V
LC1
) are also used as pins
SEG
0
–SEG
2
. When SEG
0
is selected, the internal power (V
DD
)
is used for the LCD power.
(1) Duty and bias
There are 3 combinations of duty and bias for displaying data on
the LCD. Use bits 0 and 1 of LCD control register (L1) to select
the proper display method for the LCD panel being used.
1/2 duty, 1/2 bias
1/3 duty, 1/3 bias
1/4 duty, 1/3 bias
Table 18 Table 11 Duty and maximum number of
displayed pixels
Note.
Leave unused COM pins open
.
Fig 43. LCD controller/driver
Duty
Maximum number of displayed
pixels
64 pixels
96 pixels
128 pixels
Used COM pins
1/2
1/3
1/4
COM
0
, COM
1
(Note)
COM
0–
COM
2
(Note)
COM
0–
COM
3
Common
driver
Bias control
Segment
driver
Segment
driver
Segment
driver
Segment
driver
Segment
driver
Segment
driver
Selector
LCD RAM
Register A
Selector
Selector
Selector
Selector
Selector
L1
2
L2
0
L2
3
V
DD
L2
3
L2
2
L2
1
L1
3
L1
3
L1
3
L1
1
L1
0
Decoder
LCD ON/OFF
control
1/2, 1/3, 1/4
counter
LCD clock
(from timer LC)
C
3
C
2
C
1
C
0
S
0
/
L
S
1
/
L
S
2
/
L
S
3
....
....
....
....
....
....
....
....
....
....
P
0
/
1
0
3
....
L
3
L
2
L
1
0
3
....
0
3
....
0
3
....
P
3
/
1
P
0
/
2
P
3
/
2
P
0
/
2
P
3
/
2
P
0
/
2
P
3
/
3
S
1
r
r
r
r
r
r
to
to
to
to
to
相關(guān)PDF資料
PDF描述
M34571G4 SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M3488Q1 256 x 256 DIGITAL SWITCHING MATRIX
M3488 256 x 256 DIGITAL SWITCHING MATRIX
M3488B1 256 x 256 DIGITAL SWITCHING MATRIX
M3493B2 CMOS 12 X 8 CROSSPOINTWITH CONTROL MEMORY
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M34559G6FP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M34559G6-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M3455AG8FP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M3455AG8-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M3455AGCFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER