參數(shù)資料
型號(hào): μPD780983
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 44/121頁
文件大?。?/td> 350K
代理商: ΜPD780983
CHAPTER 3 CONTROL
44
(7)
LED and 8-segment LED display setting
The current PWM output signal state is set as shown below.
LED
At PWM output (MMODE
0) _LEDOUT is set.
At PWM output (MMODE = 0) _LEDOUT is reset.
8-segment LED
Depending on display mode DMODE, the character code to be displayed is set in 8-
segment LED display buffer SEGBUF.
Table 3-18. Character Codes
Character
Code
Character
Code
Character
Code
Character
Code
Character
Code
0
00H
5
05H
d
0AH
0.
10H
5.
15H
1
01H
6
06H
o
0BH
1.
11H
6.
16H
2
02H
7
07H
2.
12H
7.
17H
3
03H
8
08H
" "
0DH
3.
13H
8.
18H
4
04H
9
09H
4.
14H
9.
19H
Remark
There are no character codes above 0EH, 0FH and 1AH.
Table 3-19. 8-Segment LED Display in Each Mode
When OFF mode is set
When other than OFF
mode is set
LED
8-segment LED
LED
8-segment LED
Remarks
Change pattern selection
Not lit
P01
Note
When pattern 1 is set
Signal output stopped
Target frequency
Not lit
65
Not lit
65
Note
When 65 Hz is set
Carrier frequency
Not lit
10.0
Not lit
10.0
Note
When 10,000 Hz is set
Dead time
Not lit
d10
Not lit
d10
Note
When 10
μ
s is set
Rate of frequency change
Not lit
o2.0
Not lit
o2.0
Note
When 2 Hz/s is set
Output frequency change
Target/Output frequency
Flashing
65
Flashing
65
Note
When 65 Hz is set
Carrier frequency
Flashing
10.0
Flashing
10.0
Note
When 10,000 Hz is set
Rate of frequency change
Flashing
o2.0
Flashing
o2.0
Note
When 2 Hz/s is set
Fixed frequency output
Target/Output frequency
Lit
65
Lit
65
Note
When 65 Hz is set
Carrier frequency
Lit
10.0
Lit
10.0
Note
When 10,000 Hz is set
Rate of frequency change
Lit
o2.0
Lit
o2.0
Note
When 2 Hz/s is set
Note
Flashing display (50% duty, 1-s cycle). The flash cycle is reset every time key input is performed.
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