Block Diagram - Renesas F-ZTAT H8 Series Hardware Manual

8-bit single-chip microcomputer
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14. Dot Matrix LCD Controller (H8/3854 Group)
14.1.2

Block Diagram

Figure 14.1 shows a block diagram of the LCD controller.
SEG40
Segment driver
40 × 16-bit display
Display data register
LCD drive level power supply
selection circuit
V5OUT
V4OUT
Rev.3.00 Jul. 19, 2007 page 376 of 532
REJ09B0397-0300
SEG1
COM16
Latch 2
Latch 1
memory
X decoder
V3OUT
V1OUT
V2OUT
Figure 14.1 Block Diagram of LCD Controller
COM9
COM1
COM8
Common driver
Decoder
CPU interface
RS
STRB
DB6
R/W
DB7
Common
counter
Display
line counter
Address
register
Control
register 1/2
Index
register
Frame frequency
setting register
DB4
DB2
DB5
DB3
DB1
DB0

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