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HT16C21 Datasheet(PDF) 20 Page - Holtek Semiconductor Inc

Part # HT16C21
Description  RAM Mapping 20*4 / 16*8 LCD Driver Controller
PDF  34 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT16C21 Datasheet(HTML) 20 Page - Holtek Semiconductor Inc

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Rev. 1.00
20
November 22, 2011
HT16C21
Frame Frequency Command
This command selects the frame frequency.
Function
Byte (MSB)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1 (LSB)
Bit0
Note
R/W Def
Frame frequency
command
1st
1
0
0
0
0
1
1
0
W
Frame frequency
setting
2nd
X
X
X
X
X
X
X
F
W
00H
Note:
Bit
Frame Frequency
F
0
80Hz
1
160Hz
● Power on status: Frame frequency is set to 80Hz.
● If the programmed command is not defined, the function will not be affected.
Blinking Frequency Command
This command defines the blinking frequency of the display modes.
Function
Byte (MSB)
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1 (LSB)
Bit0
Note
R/W Def
Blinking Frequen-
cy command
1st
1
0
0
0
1
0
0
0
W
Blinking
Frequency setting
2nd
X
X
X
X
X
X
BK1
BK0
W
00H
Note:
Bit
Blinking Frequency
BK1
BK0
0
0
Blinking off
0
1
2Hz
1
0
1Hz
1
1
0.5Hz
● Power on status: Blinking function is switched off.
● If the programmed command is not defined, the function will not be affected.



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