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參數(shù)資料
| 型號(hào)： | EPVP6800 |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | VFD Controller |
| 中文描述： | 變頻控制器 |
| 文件頁數(shù)： | 38/47頁 |
| 文件大?。?/td> | 325K |
| 代理商： | EPVP6800 |
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ePVP6800
VFD Controller
32 of 47
11. 28.2004
(V1.23)
This specification is subject to change without further notice.
KEY1….KEY4
KEY1….KEY4
SEG1/KS1
SEG2/KS2
SEG3/KS3
SEG4/KS4
b0 -- -- b3
b4 -- -- b7
When the most significant bit of data (SEG4, b7) has been read, the least significant bit of the next
data (SEG1, b0) is read.
8.1 Commands
A command sets the display mode and status of the VFD driver.
The first 1 byte (b0 to b7) inputted to the ePVP6800 through the DIN pin after the STB pin has fallen,
is regarded as a command. Interrupt event will occur when STB pin is falling.
If STB mode is high while a command/data are being transmitted, serial communication is initialized,
and the command/data being transmitted is invalidated (however, the command/data already
transmitted remain valid).
8.1.1 Display Mode Setting Command [00]
This command initializes the ePVP6800 and selects Display mode number of segments and grids (1/4
to 1/11-duty, 6 segments to 8 segments) as illustrated below.
When Display Mode command is executed, display is forcibly turned off, and key scanning is also
stopped. To resume display, a display ON command must be executed. If the same Display mode is
selected, nothing is performed.
When power is turned “ON,” default Display mode is “9-digit, 8-segment.”
Not Relevant
Display mode
000 : 4 digits, 8 segments.
001 : 5 digits, 8 segments.
010 : 6 digits, 8 segments.
011 : 7 digits, 8 segments.
100 : 8 digits, 8 segments.
101 : 9 digits, 8 segments.
110 : 10 digits, 7 segments.
111 : 11 digits, 6 segments.
0
0
0
0
0
1
1
1
Initial value
MSB
LSB
b7 b6
b5
b4
b3
b2
b1
b0
Fig. 8 Display Mode Setting Command Selection
Default setting
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