µPD16430A
Commands
Commands serve to set the LCD driver’s display mode and status.
The first byte (8 bits) after the falling edge input of the STB signal is processed as a command.
The various types of commands are shown below.
(1) Display Mode Setting Command
MSB
LSB
LL
F
R
F
R
CC
DD
0
0 —— C
K
C
K
MM
DD
1 0 10
Display mode setting flag
00 : 1/2 duty, 1/2 bias
01 : 1/2 duty, 1/2 bias
10 : 1/3 duty, 1/3 bias
11 : 1/4 duty, 1/3 bias
Frame frequency setting flag
00 : (fOSC/128) × n, n = duty (1/2, 1/3, 1/4)
01 : (fOSC/256) × n
10 : (fOSC/512) × n
11 : (fOSC/1024) × n
Don’t Care
Values at power-on reset
——— —— —
8