STAC9750 Datasheet, PDF (49/73 Pages) Integrated Device Technology – VALUE-LINE TWO-CHANNEL AC’97 CODECS

STAC9750/9751
VALUE-LINE TWO-CHANNEL AC’97 CODECS
PC AUDIO
6.5.21.
GPIO Pin Mask Register (52h)
Default: 0000h
D15
D14
D13
D12
D11
D10
D9
D8
Reserved
D7
D6
D5
D4
D3
D2
D1
D0
Reserved
GW1
(GPIO1)
GW0
(GPIO0)
Table 33. GPIO Pin Mask Register
Bit(s)
15:2
1
0
Access Reset Value
Read Only
0
Read / Write
0
Read / Write
0
Name
Reserved
GW1
GW0
Description
Bit not used, should read back 0
0 = GPIO1 interrupt not passed to GPIO_INT slot 12.
1 = GPIO1 interrupt is passed to GPIO_INT slot 12.
0 = GPIO0 interrupt not passed to GPIO_INT slot 12.
1 = GPIO0 interrupt is passed to GPIO_INT slot 12.
6.5.22.
GPIO Pin Status Register (54h)
Default: 0000h
D15
D14
D13
D12
D11
D10
D9
D8
Reserved
D7
D6
D5
D4
D3
D2
D1
D0
Reserved
GI1
(GPIO1)
GI0
(GPIO0)
IDT™
VALUE-LINE TWO-CHANNEL AC’97 CODECS
49
STAC9750/9751
V 5.8 103106