632
•
Module stop mode
As the initial setting, LCD operation is halted. Access to registers and LCD RAM is
enabled by clearing module stop mode.
18.1.2
Block Diagram
Figure 18-1 shows a block diagram of the LCD controller/driver.
ø/8 to ø/1024
ø
SUB
CL2
CL1
SEGn, DO
LPCR
LCR
LCR2
Display timing generator
LCD RAM
20 bytes
Internal data bus
24-bit
shift
register
*
1
40-bit
shift
register
*
2
LCD drive
power supply
Segment
driver
Common
data latch
Common
driver
M
V1
V2
V3
V
SS
COM1
COM4
SEG24
SEG23
SEG22
SEG21
SEG20
SEG1
Legend:
LPCR: LCD port control register
LCR:
LCD control register
LCR2: LCD control register 2
Notes:
*
1 In the H8S/2646, H8S/2646R, and H8S/2645.
*
2 In the H8S/2648, H8S/2648R, and H8S/2647.
LPV
CC
H8S/2646R
*
1
SEG40
SEG39
SEG38
SEG37
SEG36
SEG1
H8S/2648R
*
2
Figure 18-1 Block Diagram of LCD Controller/Driver
Summary of Contents for H8S/2645
Page 4: ......
Page 16: ......
Page 58: ...26 ...
Page 110: ...78 ...
Page 120: ...88 ...
Page 132: ...100 ...
Page 160: ...128 ...
Page 172: ...140 ...
Page 418: ...386 ...
Page 444: ...412 ...
Page 530: ...498 ...
Page 562: ...530 ...
Page 642: ...610 ...
Page 662: ...630 ...
Page 688: ...656 ...
Page 756: ...724 ...
Page 784: ...752 ...
Page 812: ...780 ...
Page 837: ...805 A 2 Instruction Codes Table A 2 shows the instruction codes ...
Page 1152: ...1120 ...