Intel E3815 FH8065301567411 Datenbogen

 

Intel

®

 Atom™ Processor E3800 Product Family

Datasheet

813

Audio Channel Status Attributes 0

11

0b

RW

Set this bit will enble HW to 

send valid zero-filled packet with Sample flat bit set when no sample buffer is available, 

NCTS packets (or Timesstamp packet) are sent to keep sink in sync even no audio 

sound will heard.1= send underrun packets (silent stream) 

0= send null packets (default) 

Programming note: SW driver shall always set silent stream bit. When SW driver wants 

to pause audio, it shall invalidate the two newest allocated audio buffers. When the 

current audio buffers are processed, silent stream is sent automatically.

10

0b

RW

HW will clear this bit ineach sub-frames it sends, But this bit allows to 

overwrite hardware setting for special operation like debug or testing for compliance 

1= sey U bit in sub-frame  

0= clear U bit in sub-frame (default)

9

1b

RW

HW will set this bit in both each sub-frames it sends. But this bit 

allows to overwrite hardware setting for special operation like debug or testing for 

compliance 

1= Set V bit in sub-frame (default) 

0= clear V bit in sub-frame. For debug or testing

8

0b

RW

When set the sample flat bit will be set in all HDMI sub-packets. 

1= flat bit is set for valid sample  

0= flat bit is not set for valid sample (default)

7

1b

RW

Controls the B bit in the header of 

only the first Audio Packet /frame of a 192 frame 60958 block in Layout 1 mode. This bit 

only applies to LPE HDMI mode. 

0: The B bit will be set only for sub-packet 0 

1: The B bit in the Audio sample packet header will be set for all valid sub-packets. 

(default)

6:4

0b

RW

audio Channels 

000: 2 channels (stereo) 

001: 3 channels 

010: 4 channels 

011: 5 channels  

100: 6 channels 

101: 7 channels  

110: 8 channels 

Note: When disable_bogus sample bit is clear HW will always treat odd number of 

channels similar to the next higher even number. Thus 3 is similar to 4, 5 to 6 and 7 to 

8. This is because SW ensures that an even number of samples are packed in the audio 

buffers. 

Programming note: Bit 6 of of this field is a write only bit. When reads back, it always 

returns zero. Ensure to write bit 6 to 1?b1 when programming for 6/7/8 audio channels.

3:2

0b

RW

00: L-PCM or IEC 61937 

01: High Bit Rate IEC 61937 stream packet (not supported) 

10: One Bit Audio Sample packet (not supported) 

11: DST Audio Sample packet (not supported)

1

0b

RW

0: Layout 0 (2-ch) 

1: Layout 1 (3-8 ch) 

Note: Layout bit doesn t matter for HBR

0

0b

RW

Controls generation of N/CTS and transmission of audio sample 

packets.  

0: Audio sample packets are not transmitted, CTS calculation/transmission is disabled 

1: Audio sample packets are transmitted and CTS calculation is enabled 

When enable audio unit will wait until the next vertical blank period before sending out 

the audio packets. When disable, audio unit may continue to send audio packet until the 

end of current active video frame before stopping.