Specifications

I-104 EPSON S1C62N82 TECHNICAL HARDWARE
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Melody Generator)
Address Comment
Register
D3 D2 D1 D0 Name SR 1 0
0E7H
0 0 0 EIMEL
R
0
0
0
EIMEL
0 Enable Mask
Interrupt mask register (melody)
R/W
0ECH
0 0 0 IMEL
R
0
0
0
IMEL
0
Interrupt factor flag (melody)
Yes No
0F0H
0F1H
0F2H
MAD3 MAD2 MAD1 MAD0
0 MAD6 MAD5 MAD4
CLKC1 CLKC0 TEMPC MELC
R/W
R
R/W
MAD3
MAD2
MAD1
MAD0
0
0
0
0
0
MAD6
MAD5
MAD4
0
0
0
Melody ROM address (AD6, MSB)
Melody ROM address (AD5)
Melody ROM address (AD4)
CLKC1
CLKC0
TEMPC
MELC
0
0
0
0
CLKC1(0)&CLKC0(0) : melody speed 1
CLKC1(0)&CLKC0(1) : melody speed 8
CLKC1(1)&CLKC0(0) : melody speed 16
CLKC1(1)&CLKC0(1) : melody speed 32
Tempo change control
Melody control ON/OFF
Melody ROM address (AD3)
Melody ROM address (AD2)
Melody ROM address (AD1)
Melody ROM address (AD0, LSB)
High
High
High
High
Low
Low
Low
Low
High
High
High
Low
Low
Low
High
High
High
ON
Low
Low
Low
OFF
R/W
×
×
×
×
0F4H
R12
MO
ENV
R11
R10
FOUT
R/W
MELD
R12
MO
ENV
R11
R10
FOUT
Melody output mask
Output port data (R12)
Inverting melody output
Melody envelope control
Output port data (R11)
Output port data (R10)
Frequency output
Disable
High
–
–
High
High
ON
Enable
Low
–
–
Low
Low
OFF
0
0
–
Hz
0
0
MELD
Control of the
melody generator
Operation of registers for melody control is explained in this
section.
Table 4.11.9 Control bits of melody generator