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參數資料
| 型號： | W742E813 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT MICROCONTROLLER |
| 中文描述： | 4-BIT, FLASH, 3.58 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, 2.75 MM HEIGHT, QFP-100 |
| 文件頁數： | 18/45頁 |
| 文件大小： | 567K |
| 代理商： | W742E813 |
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Preliminary W742E81A/W742C81A
- 18 -
For example, when F
T
equals 32768 Hz, depending on the preset value of TM1, the MFP pin will
output a single tone signal in the tone frequency range from 64 Hz to 16384 Hz. The relation between
the tone frequency and the preset value of TM1 is shown in the table below.
MOV WR,TM1 can read back the content of TM1, It will save the TM1 MSB to WR and the TM1 LSB
to ACC.
Table 3 The relation between the tone frequency and the present value of TM1
C
C
#
D
D
#
B
G
G
A
F
F
E
A
#
#
#
E
N
O
T
TM1 preset value
& MFP frequency
3rd octave
4th octave
5th octave
261.63
277.18
293.66
311.13
329.63
349.23
369.99
392.00
415.30
440.00
466.16
493.88
523.25
554.37
587.33
622.25
659.26
698.46
739.99
783.99
830.61
880.00
932.23
987.77
260.06
277.69
292.57
309.13
327.68
372.36
390.09
420.10
443.81
442.81
3EH
3AH
37H
34H
31H
2EH
2BH
29H
26H
22H
24H
20H
468.11
496.48
1EH
1CH
1BH
19H
18H
16H
15H
14H
13H
12H
11H
10H
528.51
564.96
585.14
630.15
655.36
712.34
744.72
780.19
819.20
862.84
910.22
963.76
130.81
138.59
146.83
155.56
164.81
174.61
185.00
196.00
207.65
220.00
233.08
246.94
7CH
75H
6FH
68H
62H
5DH
58H
53H
4EH
45H
49H
41H
131.07
138.84
146.28
156.03
165.49
174.30
184.09
195.04
207.39
221.40
234.05
248.24
Tone
frequency
Tone
frequency
TM1 preset value
& MFP frequency
Tone
frequency
TM1 preset value
& MFP frequency
Note: Central tone is A4 (440 Hz).
6.12.3 Mode Register 0 (MR0)
Mode Register 0 is organized as a 4-bit binary register (MR0.0 to MR0.3). MR0 can be used to control
the operation of Timer 0. The bit descriptions are as follows:
Note: W means write only.
W
W
0
1
2
3
MR0
Bit 0 = 0 The fundamental frequency of Timer 0 is F
OSC
/4.
= 1 The fundamental frequency of Timer 0 is F
OSC
/1024.
Bit 1 & Bit 2 are reserved
Bit 3 = 0 Timer 0 stops down-counting.
= 1 Timer 0 starts down-counting.
相關PDF資料 |
PDF描述 |
|---|---|
| W742C81A | 4-BIT MICROCONTROLLER |
| W742S819 | 4-BIT TELEPHONE CONTROLLER |
| W742S81A | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| W742S82A | 4-BIT TELEPHONE CONTROLLER |
| W74IE20X | 4-BIT FLASH MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W742E816 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| W742E81A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER |
| W742S819 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT TELEPHONE CONTROLLER |
| W742S81A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4 BIT MICROCONTROLLER |
| W742S82A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT TELEPHONE CONTROLLER |
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