Intel E3815 FH8065301567411 Data Sheet
Product codes
FH8065301567411
Intel
®
Atom™ Processor E3800 Product Family
810
Datasheet
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
MPLE_BUFFE
R_U
N
DE
RRUN
AUD
IO_
BA
NDW
ID
T
H_U
N
D
E
R
R
U
N
_
DE
B
U
G
LPE
_
AUDIO
_
BU
FFE
R_DONE
_ST
A
TUS
RE
SE
RVED
NUMBER_OF_S
A
MPLES_B
E
H
IND_D
EBUG
S
A
MPLE_BUFFER_UNDER
R
U
N
_INTE
RRU
PT_E
NABLE
AUDIO_BAN
D
WID
T
H_UNDER
R
U
N
_INTE
RRU
PT_E
NABLE
RESE
RVED
_1
AZ
A
LIA_
C
O
M
PA
T
IB
LE_MO
D
E
AUDIO_S
A
MPLE_RUN_RA
T
E_D
E
BUG
FUNC
T
ION_RESE
T
_R_W_ONL
Y
Bit
Range
Default &
Access
Field Name (ID): Description
31
0b
RW/1C
SAMPLE_BUFFER_UNDERRUN:
This bit indicates an underrun in the sample buffer to
HDMI 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 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:
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
15
0b
RW
SAMPLE_BUFFER_UNDERRUN_INTERRUPT_ENABLE:
This bit is to enable the first
line buffer underrun interrupt when sample buffer underrun status is detected
0 = LPE sample Buffer Underrun Interrupt Disabled
1 = LPE sample Buffer Underrun Interrupt Enabled
14
0b
RW
AUDIO_BANDWIDTH_UNDERRUN_INTERRUPT_ENABLE:
This bit is to enable the
first line bandwidth underrun interrupt when bandwidth underrun status is detected
0 = LPE Bandwidth Underrun Interrupt Disabled
1 = LPE Bandwidth Underrun Interrupt Enabled
13:3
0b
RW
RESERVED_1:
Reserved.