Intel E3815 FH8065301567411 Data Sheet
Product codes
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
826
Datasheet
Default: 00000000h
Type:
Memory Mapped I/O Register
(Size: 32 bits)
Offset:
GTTMMADR_LSB Type:
PCI Configuration Register (Size: 32
bits)
GTTMMADR_LSB Reference:
GTTMMADR_LSB Reference:
[B:0, D:2, F:0] + 10h
31
28
24
20
16
12
8
4
0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
S
A
M
PLE
_
BU
FFE
R_UN
D
E
RRUN_ST
A
T
US
AUDIO
_
BAND
WID
T
H
_
UND
E
RRUN_DEBUG_ST
A
T
US
LP
E_AU
D
IO_B
U
FF
E
R
_D
O
N
E_S
TA
T
US
RE
SE
RVED
NUMBER_OF_S
A
MPLES_
B
E
HIND_D
EBUG
S
A
MPLE_BUFFER_UNDE
RRU
N_INTE
RRU
PT_E
NABLE
A
U
DIO_BA
ND
WID
T
H_UNDE
RRU
N_INTE
RRU
PT_E
NABLE
RESE
RVE
D
_1
AZ
A
LIA_C
OM
PA
T
IB
LE
_
MO
D
E
AUDIO_S
A
MPLE_RUN_RA
T
E_D
E
BUG
FUNC
T
ION_RESET_R_W_ONL
Y
Bit
Range
Default &
Access
Field Name (ID): Description
31
0b
RW/1C
SAMPLE_BUFFER_UNDERRUN_STATUS:
This bit indicates an underrun in the
sample buffer to HDMI/DP controller when it needs to send. This bit is set at the last line
of active video when there are no more sample in any valid buffers and HDMI/DP audio
unit has not satisfied number of audio samples intended in that video frame.
Clearing this status bit is accomplished by writing a 1 to this bit through MMIO.
AccessType: One to Clear
30
0b
RW/1C
AUDIO_BANDWIDTH_UNDERRUN_DEBUG_STATUS:
This bit indicates an underrun
of audio samples at HDMI audio packet assembly even there is still available sample
buffers. Audio bandwidth underrun should not happen in normal functionality but it may
happen when audio setting is unappropriate and/or memory bus was blocked by other
clients, etc... This bit is set at the last line of active video when there is valid samples in
a valid buffer and HDMI audio unit has not satisfied number of audio samples intended
in that video frame
Clearing this status bit is accomplished by writing a 1 to this bit through MMIO.
AccessType: One to Clear
29
0b
RW/1C
LPE_AUDIO_BUFFER_DONE_STATUS:
This bit is set when a LPE audio buffer is
completed transferred all of its data to LPE audio unit. This bit is clear when write 1 to it
AccessType: One to Clear
28:24
0b
RW
RESERVED:
Reserved.
23:16
0b
RO
NUMBER_OF_SAMPLES_BEHIND_DEBUG:
This field is read only to get the number
of audio samples that controller needs to load and send at the time of reading.
AccessType: Read Only