UPD16432B NEC, UPD16432B Datasheet - Page 32

• Manufacturer Part Number: UPD16432B
• Description: 1/8/ 1/15 DUTY LCD CONTROLLER/DRIVER
• Manufacturer: NEC

6.
32
Standby (Released by KEY
(1) Flowchart
(2) Timing chart
To next processing
Normal operation
Key request
Transition
time OK?
Standby
Start
YES
KEY REQ
DATA
SCK
STB
NO
N
)
Command 1
Status command (command 1)
MSB
Key (KEY
KEY REQ = H, OSC oscillation start
Standby transition time: 10 s
Status command (command 2)
MSB
1
1
1
1
n
) input
0
0
1
0
0
1
0
1
0
1
LSB
LSB
0
0
t
STBY
(Standby)
(LCD on, LED on, key scan operation)
Command 2
PD16432B