sc3200 Advanced Micro Devices, sc3200 Datasheet - Page 280
sc3200
Manufacturer Part Number
sc3200
Description
Geode-tm Sc3200 Processor
Manufacturer
Advanced Micro Devices
Datasheet
1.SC3200.pdf
(447 pages)
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6.4.4.1
F3 Index 10h, Base Address Register 0 (F3BAR0), points
to the base address of where the registers for audio sup-
port are located. Table 6-38 gives the bit formats of the
280
Offset 00h-03h
Offset 04h-07h
Offset 08h-0Bh
29:21
31:20
31:24
19:0
19:0
Bit
31
30
20
23
22
21
20
19
18
17
Audio Support Registers
Description
Codec GPIO Interface.
0: Disable.
1: Enable.
Codec GPIO SMI. When asserted, allows codec GPIO interrupt to generate an SMI.
0: Disable.
1: Enable.
Top level SMI status is reported at F1BAR0+I/O Offset 00h/02h[1].
Second level SMI status is reported at F3BAR0+Memory Offset 10h/12h[1].
Reserved. Must be set to 0.
Codec GPIO Status Valid. (Read Only) Indicates if the status read is valid.
0: Yes.
1: No.
Codec GPIO Pin Status. (Read Only) This field indicates the GPIO pin status that is received from the codec in slot 12 on
the SDATA_IN signal.
Reserved. Must be set to 0.
Codec GPIO Pin Data. This field indicates the GPIO pin data that is sent to the codec in slot 12 on the SDATA_OUT signal.
Codec Status Address. (Read Only) Address of the register for which status is being returned. This address comes from
slot 1 bits [19:12].
Codec Serial INT Enable. When asserted, allows codec serial interrupt to cause an SMI.
0: Disable.
1: Enable.
Top level SMI status is reported at F1BAR0+I/O Offset 00h/02h[1].
Second level SMI status is reported at F3BAR0+Memory Offset 10h/12h[1].
SYNC Pin. Sets SYNC high or low.
0: Low.
1: High.
SDATA_IN2_EN. When enabled, allows use of SDATA_IN2 input.
0: Disable.
1: Enable.
Audio Bus Master 5 AC97 Slot Select. Selects slot for Audio Bus Master 5 to receive data.
0: Slot 6.
1: Slot 11.
Audio Bus Master 4 AC97 Slot Select. Selects slot for Audio Bus Master 4 to transmit data.
0: Slot 6.
1: Slot 11.
Reserved. Must be set to 0.
Status Tag. (Read Only) The codec status data in bits [15:0] of this register is updated in the current AC97 frame. (codec
ready, slot1 and slot2 bits in tag slot are all set in current AC97 frame).
0: Not new.
1: New, updated in current frame.
Table 6-38. F3BAR0+Memory Offset: Audio Configuration Registers
Revision 5.1
Codec GPIO Control Register (R/W)
Codec GPIO Status Register (R/W)
Codec Status Register (R/W)
memory mapped audio configuration registers that are
accessed through F3BAR0.
Core Logic Module - Audio Registers - Function 3
AMD Geode™ SC3200 Processor Data Book
Reset Value: 00000000h
Reset Value: 00000000h
Reset Value: 00000000h
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