HD6432646 Hitachi, HD6432646 Datasheet - Page 666

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

18.1.2
Figure 18-1 shows a block diagram of the LCD controller/driver.
632
ø/8 to ø/1024
Legend:
LPCR: LCD port control register
LCR:
LCR2: LCD control register 2
Notes: *1 In the H8S/2646, H8S/2646R, and H8S/2645.
Module stop mode
As the initial setting, LCD operation is halted. Access to registers and LCD RAM is
LCD control register
*2 In the H8S/2648, H8S/2648R, and H8S/2647.
enabled by clearing module stop mode.
ø
SUB
Block Diagram
Display timing generator
Figure 18-1 Block Diagram of LCD Controller/Driver
LCD RAM
20 bytes
CL2
LPCR
LCR2
LCR
CL1
SEGn, DO
M
data latch
register *
register *
Common
24-bit
40-bit
shift
shift
power supply
LCD drive
1
2
Common
Segment
driver
driver
H8S/2646R
COM1
COM4
SEG24
SEG23
SEG22
SEG21
SEG20
SEG1
LPV
V1
V2
V3
V
SS
CC
*
1
H8S/2648R
SEG40
SEG39
SEG38
SEG37
SEG36
SEG1
*
2