Specifications

S1C62N82 TECHNICAL HARDWARE EPSON I-89
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Melody Generator)
Fig. 4.11.13 Melody terminal output configuration and output waveform
R12
MO
R12
register
output
Melody
signal
V DD
V DD
Vss
Vss
R12
MO
V
DD
Attack
signal
Melody
signal
Analog switch
Vss
MO
R12
(with external
capacitor)
R12
MO
R12
MO
(3) R12: With envelope function
(Normal HIGH level output)
(6) R12: With envelope function
(Normal LOW level output)
R12
MO
R12
register
output
Melody
signal
V DD
V DD
Vss
Vss
R12
MO
Melody
control
signal
Melody
signal
V DD
V DD
Vss
Vss
R12
MO
Melody
control
signal
Melody
signal
V DD
V DD
Vss
Vss
MO
V
DD
Attack
signal
Melody
signal
Analog switch
Vss
R12
R12
MO
R12
MO
MO
R12
(with external
capacitor)
(1) R12: DC output
(Normal HIGH level output)
(4) R12: DC output
(Normal LOW level output)
(2) R12: Melody reverse output
(Normal HIGH level output)
(5) R12: Melody reverse output
(Normal LOW level output)