Hitachi H8/300L Series Manual page 21

Liquid Crystal Display Controller/Driver
Application Example
This section describes the use of the H8/3834 Series in CD players. The liquid crystal display
(LCD) controller/driver drives the LCD directly. The built-in timers, of which there are five
types, are used to implement clock and remote control reception
functions. The three-channel serial communication
interface (SCI) forms the interface with signal
processing and servo ICs and can also be used for
the interface with other equipment. Finally,
the 12-channel A/D converter can be used for
data acquisition from the various sensors, such
as the audio level control.
SRAM
Signal
processing IC
Servo IC
Other AV
equipment
Audio circuits
Level meter
(L/R),
Power supply
Mechanism
mode switching
<Notation>
LCD: Liquid crystal display
Four common lines, 4 to 40 segment lines
System control
block
SCI
Mechanism
protection
SCI
Servo circuit
control
SCI
Mechanism
mode control
I/O
Sensor
processing
A/D
I/O
Mechanism
mode motor
driver
MM
Mechanism
motor
LCD
LCD controller/driver
H8/3834 Series
Display control block
Special
Key input
playback
modes such as
programmed
LCD display
playback
Various time
Clock
display modes,
Playback time,
Remaining
Remote
time,
controller
receiver circuit
Total time
Tray loading
motor driver
LM
Tray loading
motor
21
Application Perspectives
CD players
I/O or A/D
Key input
Remote
Input capture
controller
receiver circuit
Custom file
SRAM