
4
μ
PD16675A
CONTENTS
1.
PIN FUNCTIONS.................................................................................................................................... 6
1.1
Power System............................................................................................................................................... 6
1.2
Logic System................................................................................................................................................ 6
1.3
Driver System............................................................................................................................................... 8
2.
VOLTAGE CONTROL CIRCUIT ............................................................................................................ 8
3.
LCD DISPLAY ........................................................................................................................................ 9
4.
GROUP ADDRESSES.......................................................................................................................... 10
4.1
Dot Display ................................................................................................................................................. 10
4.2
Pictographic Display.................................................................................................................................. 11
4.3
Blink Data.................................................................................................................................................... 12
5.
COMMAND........................................................................................................................................... 13
5.1
Basic Form.................................................................................................................................................. 13
5.2
Chip Address Register (CAR) ................................................................................................................... 13
5.3
Command Register.................................................................................................................................... 14
5.3.1
Reset............................................................................................................................................... 14
5.3.2
Display ON/OFF .............................................................................................................................. 14
5.3.3
Standby ........................................................................................................................................... 14
5.3.4
Duty setting...................................................................................................................................... 15
5.3.5
Master/slave setting......................................................................................................................... 15
5.3.6
Blink setting..................................................................................................................................... 15
5.3.7
Data R/W mode............................................................................................................................... 16
5.3.8
Test mode........................................................................................................................................ 16
5.3.9
D/A converter setting....................................................................................................................... 16
5.4
Address Register ....................................................................................................................................... 17
6.
RESETTING.......................................................................................................................................... 18
7.
COMMUNICATION FORMAT .............................................................................................................. 19
7.1
Serial ........................................................................................................................................................... 19
7.1.1
Reception 1 (Command/data write: 1 byte)..................................................................................... 19
7.1.2
Reception 2 (Command/data write: 2 bytes or more)...................................................................... 19
7.1.3
Transmission (Command/data read)............................................................................................... 19
7.2
Parallel ........................................................................................................................................................ 20
7.2.1
8-bit parallel interface...................................................................................................................... 20
7.2.2
4-bit parallel interface...................................................................................................................... 20
8.
CPU ACCESS EXAMPLES.................................................................................................................. 21
8.1
Initialize and Data Write............................................................................................................................. 21
8.2
Change Display Data and Pictographic Data (All Data are Changed)................................................... 23
8.3
Read Display Data and Pictograph Data.................................................................................................. 24
8.4
Blink Data Setting ...................................................................................................................................... 25
9.
ELECTRICAL CHARACTERISTICS.................................................................................................... 26