#Casio ctk 401 midi serial
Then the CPU provides 16-bit serial sound data to the DSP. The CPU reads sound data and velocity data from the sound source ROM in accordance with the selected tone the CPU can read rhythm data simultaneously when a rhythm pattern is selected. The CPU detects key velocity by counting the time between first-key input signal FI and second-key SI from the keyboard. The 16-bit CPU contains a 1k-byte RAM, three 8-bit I/O ports, two timers, a key controller and serial interfaces. The CPU sends APO signal to the power supply circuit, also sends a reset signal to the DSP. When the power switch is pressed, the CPU receives a low pulse of POWER signal. The CPU then initializes its internal circuit, and clears the working storage RAM. When batteries are set or an AC adapter is connected, the reset IC provides a low pulse to the CPU. LCD driver, Power jack, Sustain jack, MIDI jack The others are controlled by APO signal from the CPU.ĬPU, Reset IC, DSP, Sound source ROM, Working storage RAM, Effect RAM The power supply circuit generates five voltages as shown in the following table. The first conatct (1) and second contact (2). This keyboard supports General MIDI, so it can be used to play commercially available pre-recorded General MIDI data and General MIDI data send to it from a personal computer.
This standard makes it possible for all MIDI equipment to reproduce the same nuances when playing General MIDI data, regardless of the manufacturer of the sound source. General MIDI specifies such factors as tone numbering, drum sounds, and available MIDI channels for all sound sources. General MIDI standardizes MIDI data for all sound source types, regardless of manufacturer. Output level (Vrms with 47k Ω load each channel): Speaker output level (Vrms with 4 Ω load each channel): Phone output level (Vrms with 8 Ω load each channel): With 12 keys from C3 to B3 pressed in Square wave tone Turns power off approximately six minutes after last key operation. Standard jack (sustain, sostenuto, soft, rhythm start/stop)Īpproximately 5 hours continuous operation on manganese batteries Variable (A4 = approximately 440 Hz ± 50 cents) Program change number, volume, expression, pan, coarse tuning, fineġ6 multi-timbre receive, GM Level 1 standardĢ5 steps (–12 semitones to +12 semitones) PCM set, amp envelope set, attack rate, release rate, pitch envelope set, START/STOP, INTRO, NORMAL/NORMAL FILL-IN, VARIATION/VARI-ġ00 (auto-accompaniment in accordance with selected chord progres-Īpproximately 5,200 notes (total for two songs)
#Casio ctk 401 midi full
Ħ1 standard-size keys, 5 octaves (with touch response on/off)Ģ00 (128 General MIDI, 32 synthesized, 8 drum, 32 user) with layer andģ fingering methods (CASIO CHORD, FINGERED, FULL RANGE
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