ML51/ML54/ML56
Sep. 01, 2020
Page
611
of 719
Rev 2.00
ML
51
/ML
54
/ML
5
6 S
E
RI
E
S
TECHNI
CA
L
RE
F
E
R
E
NC
E
M
A
NU
A
L
ML51/M
L54
/M
L56
Series
Tec
hnical Reference
Manual
6.17.3 Block Diagram
LIRC
LXT
SEG31
SEG30
SEG1
SEG0
Segment
Output
Driver
Common
Driver
Output
Display
Data
Memory
Timing
Generator
Bias Voltage
Generator
Analog
Voltage
Multiplexer
DH1
Charge
Pump
DH2
VLCD_PAD
.
.
.
.
.
.
.
.
.
COM0
COM1
COM7
CLK
Divider
V3
V2
V1
VLCD
0
1
.
.
.
COM/SEG
Signal
Generator
VLCD_MODE[1:0]
(LCDMODE[1:0]
BUF_EN
LCDMODE[6])
BIAS[1:0]
(LCDCON0[5:4
]
LCDCKS (LCDCLK[4])
LCDDIV[2:0] (LCDCLK[2:0])
DISP (LCDCLK[3])
DUTY[1:0]
(LCDCON0[3:2])
LCDDTPR
LCDDTPR[7:0]
LCDDATA
(LCDDATA[7:0])
TYPE (LCDCON0[6])
LCDEN
(LCDCON[7])
PWR_SAVE[1:0]
(LCDPWR[1:0])
R_MODE (LCDMODE[7])
VCP_SEL[5:0](LCDCP[5:0])
RE_MODE (LCDCON1[1])
LCD _CTRL
_REG
LCD _CTRL
_REG
LCD _CTRL
_REG
LCD _CTRL
_REG
Charge Pump
Active Counter
LCDCLK
CPCNT[9:0] D
Q
Latch Counter
LCDCPCT1[1:0],
LCDCPCT0[7:0]
LCDCPALCT1[1:0],
LCDCPALCT0[7:0]
LCDCPCT >
LCDCPACLT
LCD_DIS = 0
LCDCPALIF
(LCDIF[0])
LCDCPCT =
0x3FF
LCD_DIS = 1
LCD_DIS(LCDCON1[3])
LCD_IE(LCDCO
N1[2])
LCDCPOVIF
LCDIF2]
LCDCPCT <
0x3FF
LCD_DIS = 1
LCDCPIF
LCDIF[1]
LCD_INT
ADDRESS Bus
Data Bus
00
01
10
11
Disable
AV
DD
AVSS
1uF
0.1uF
Figure 6.17-1 LCD Block Diagram