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CHAPTER 28 SOUND GENERATOR
28.2.1
Sound Generator Control Register (SGCRn)
The Sound Control Register (SGCR) controls the operation status of the Sound
Generator by controlling interrupts and setting the external output pins.
■ Sound Generator Control Register (SGCRHn)
Figure 28.2-2 Configuration of the Sound Generator Control Register (SGCRHn)
15
RESV
R/W
R/W
: Readable and writable
R
: Read only
-
: Undefined
: Initial value
■ Sound Generator Control Register (SGCRHn) contents
Table 28.2-1 Function of each bit of the Sound Generator Control Register (SGCRHn)
Name
bit 15
Reserved bit
bit 14 to 11
Undefined
710
14
13
12
11
10
9
8
FSEL BUSY DEC
-
-
-
-
-
-
-
-
R/W
R
R/W
This is a reserved bit. Always write "0" to this bit. Read value is undefined. Read-
Modify-Write is not affected.
MB96300 Super Series Hardware Manual
SGCRHn
Initial value
X X X X X 1 0 0
bit 8
Auto-decrement enable bit
DEC
Auto-decrement disabled
0
1
Auto-decrement enabled
bit 9
BUSY
Busy bit
0
Operation completed
1
Generator busy
bit 10
FSEL
PWM counter switching bit
0
384 count
1
256 count
bit 15
Reserved bit
RESV
0
always write '0' to this bit
1
Function
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