W742E816 查看數據表（PDF） - Winbond

零件编号

产品描述 (功能)

比赛名单

W742E816

4-BIT MICROCONTROLLER

Winbond 

W742E/C816

Deleted: SA5505

Deleted: W742C811

For example, when FT 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.

Table 2 The relation between the tone frequency and the preset value of TM1

3rd Octave

4th Octave

5th Octave

Tone TM1 Preset Value Tone TM1 Preset Value Tone TM1 Preset Value

Frequency & MFPFrequency Frequency & MFPFrequency Frequency & MFPFrequency

C

130.81

7CH 131.07 261.63

3EH 260.06 523.25

1EH 528.51

C # 138.59

75H 138.84 277.18

3AH 277.69 554.37

1CH 564.96

D 146.83

T D # 155.56

6FH 146.28

68H 156.03

293.66

311.13

37H 292.57

34H 309.13

587.33

622.25

1BH 585.14

19H 630.15

OE

F

164.81

174.61

N F # 185.00

G 196.00

E G # 207.65

62H

5DH

58H

53H

4EH

165.49

174.30

184.09

195.04

207.39

329.63

349.23

369.99

392.00

415.30

31H 327.68

2EH 372.36

2BH 390.09

29H 420.10

26H 443.81

659.26

698.46

739.99

783.99

830.61

18H 655.36

16H 712.34

15H 744.72

14H 780.19

13H 819.20

A 220.00

A # 233.08

49H 221.40

45H 234.05

440.00

466.16

24H 442.81

22H 468.11

880.00

932.23

12H 862.84

11H 910.22

B

246.94

41H 248.24 493.88

20H 496.48 987.77

10H 963.76

Note: Central tone is A4 (440 Hz).

5.12.3 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:

3210

MR0 W

W

Note: W means write only.

Bit 0 = 0 The fundamental frequency of Timer 0 is FOSC/4.

= 1 The fundamental frequency of Timer 0 is FOSC/1024.

Bit 1 & Bit 2 are reserved

Bit 3 = 0 Timer 0 stops down-counting.

= 1 Timer 0 starts down-counting.

- 21 -

Publication Release Date: April 15, 2005

Revision A2

Share Link: