The following table shows the pin functions of LSI101.

Pin No.

Terminal

In/Out

Function

 

 

 

 

 

 

 

 

 

 

1

TXD0

 

Out

MIDI signal input

 

 

 

 

 

 

 

 

 

 

2

RXD0

 

In

MIDI signal output

 

 

 

 

 

 

 

 

 

 

3

SCK0

 

Out

APO (Auto Power Off) signal output

 

 

 

 

 

 

 

 

 

 

4 ~ 6

 

 

 

 

 

 

 

 

Not used. Connected to ground.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

AVCC

 

In

Ground (0 V) source

 

 

 

 

 

 

 

 

 

 

8, 9

AN0, AN1

 

 

 

Not used. Connected to ground.

 

 

 

 

 

 

 

 

 

 

 

 

 

10

AGND

 

In

Ground (0 V) source

 

 

 

 

 

 

 

 

 

 

11

 

BCK

 

Out

Bit clock output

 

 

 

 

 

 

 

 

 

 

12

 

 

SO

 

Out

Serial sound data output

 

 

 

 

 

 

 

 

 

 

13

LRCK

 

Out

Word clock output

 

 

 

 

 

 

 

 

 

 

14

GND

 

In

Ground (0 V) source

 

 

 

 

 

 

 

 

 

 

15, 16

XLT0, XLT1

In/Out

20 MHz clock input/output

 

 

 

 

 

 

 

 

 

 

17

 

VCC

 

In

+5 V source

 

 

 

 

 

 

 

 

 

 

18, 19

MD0, MD1

 

In

Mode selection terminal. Connected to ground.

 

 

 

 

 

 

 

 

 

 

20

RSTB

 

In

Reset signal input

 

 

 

 

 

 

 

 

 

 

21

 

NMI

 

In

Power ON signal input

 

 

 

 

 

 

 

 

 

 

22

 

 

INT

 

 

 

Not used. Connected to ground.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23 ~ 30

FI0 ~ FI3

 

In

Key input signal

SI0 ~ SI3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

31 ~ 38

KC0 ~ KC7

 

Out

Key scan signal output

 

 

 

 

 

 

 

 

 

 

39 ~ 46

FI4 ~ FI7

 

In

Key input signal

SI4 ~ SI7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

47 ~ 50

 

 

 

 

 

 

In

Not used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

51

 

FI10

 

In

Button input signal input

 

 

 

 

 

 

 

 

 

 

52

 

SI10

 

In

Not used

 

 

 

 

 

 

 

 

 

 

53 ~ 55

KI0 ~ KI2

 

In

Button input signal input

 

 

 

 

 

 

 

 

 

 

56

MWNB

 

Out

Not used.

 

 

 

 

 

 

 

 

 

 

57 ~ 76

MA1 ~ MA17

 

Out

Address bus

 

 

 

 

 

 

 

 

 

 

77

MCSB0

 

Out

Chip enable signal output for the sound source ROM

 

 

 

 

 

 

 

 

 

 

78, 79

 

 

 

 

 

 

Out

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80

 

VCC

 

In

+5 V source

 

 

 

 

 

 

 

 

 

 

81

GND

 

In

Ground (0 V) source

 

 

 

 

 

 

 

 

 

 

82

MRDB

 

Out

Read enable signal output for the sound source ROM

 

 

 

 

 

 

 

 

 

 

83 ~ 98

MD0 ~ MD15

In/Out

Data bus

 

 

 

 

 

 

 

 

 

 

99

 

PLE

 

Out

Latch enable signal output for LED latches

 

 

 

 

 

 

 

 

 

 

100

 

 

P17

 

In

APO cancellation signal input

 

 

 

 

 

 

 

 

 

 

DAC (IC103: UPD6379GR)

The DAC receives 16-bit serial data output from the CPU. The data contains digital sound data of the melody, chord, bass, and percussion for the right and left channels. The DAC converts the data into analog waveforms and output them to each channel separately.

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Image 6
Casio CTK-530 manual Pin No Terminal In/Out Function, Int

CTK-530 specifications

The Casio CTK-530 is a versatile digital keyboard designed for both beginners and experienced musicians. With its impressive array of features and technologies, the CTK-530 offers a perfect blend of functionality and creativity, making it an excellent choice for aspiring musicians and seasoned players alike.

At the heart of the CTK-530 is its 61 touch-sensitive keys, which provide a realistic piano-playing experience. The touch-sensitive feature allows musicians to express dynamics through varying levels of pressure, creating a more authentic sound. The keyboard’s full-size keys are ideal for practicing and performing, allowing users to hone their skills efficiently.

One of the standout features of the CTK-530 is its extensive sound library, offering over 600 built-in tones. These tones cover a wide range of instruments, from classic pianos and electric pianos to synthesizers and orchestral sounds, enabling users to explore various musical styles. The keyboard also includes 180 rhythms, giving musicians a diverse palette to work with when creating original compositions or playing along with backing tracks.

The CTK-530 incorporates Casio's innovative Digital Signal Processing (DSP) technology, which enhances the quality of sound production. This technology allows users to apply various effects, including reverb and chorus, which can be customized to fit individual preferences. This feature also adds depth and richness to performances, making them more engaging.

An integrated lesson function is another highlight of the CTK-530. This feature is particularly useful for beginners, as it provides interactive lessons and practice sessions, allowing users to learn at their own pace. Additionally, the keyboard includes the Casio Chordana app compatibility, enabling smartphone connectivity for even more learning resources and song support.

For those who wish to record their music, the CTK-530 offers a built-in MIDI recorder, allowing users to capture their performances with ease. This feature, combined with an LCD display that provides visual feedback, ensures that both practice and performance are streamlined and efficient.

In terms of connectivity, the CTK-530 includes a headphone output for private playing and audio input for connecting external devices. This feature makes it easy to accompany backing tracks from smartphones or tablets, enhancing the playing experience.

Overall, the Casio CTK-530 is an impressive digital keyboard that offers a wealth of features, making it an excellent choice for anyone looking to explore the world of music. With its blend of sound quality, technology, and user-friendly design, the CTK-530 stands out as an ideal instrument for creativity and learning.