Registers – FUJITSU MB91460 SERIES FR60 User Manual
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Chapter 42 Sound Generator
3.Registers
3. Registers
7
6
5
4
3
2
1
0
TST
DEC
SGCRL
(R/W)
(R/W)
(R/W)
(R/W)
(0)
(0)
(0)
(0)
Bit number
Sound Control register
Address: 000199
H
Read/write
Initial value
15
14
13
12
11
10
9
8
S1
S0
TONE
INTE
INT
ST
SGCRH
Bit number
Read/write
Initial value
Address: 000198
H
15
14
13
3
2
1
0
D15
D14
D13
D3
D2
D1
D0
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(X)
(X)
(X)
(X)
(X)
(X)
(X)
(X)
SGFR
Bit number
Read/write
Initial value
Frequency Data register
Address: 00019A
H
15
14
13
12
11
10
9
8
D7
D6
D5
D4
D3
D2
D1
D0
SGAR
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
Bit number
Read/write
Initial value
Amplitude Data register
Address: 00019C
H
(R/W)
(0)
(R)
(0)
(0)
(R/W)
7
6
5
4
3
2
1
0
SGDR
Bit number
Read/write
Initial value
Decrement Grade register
Address: 00019F
H
15
14
13
12
11
10
9
8
SGTR
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(X)
(X)
(X)
(X)
(X)
(X)
Bit number
Read/write
Initial value
Tone Count register
Address: 00019E
H
BUSY
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(R/W)
(X)
(X)
(X)
(X)
(X)
(X)
(X)
(X)
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
(R/W)
(R/W)
(X)
(X)
S2
(R/W)
(0)
(R/W)
(0)
(R/W)
(0)