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LFI- 1 0 User Guide
Using the LFI-10
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[Q]GJ]WJm0m1WJmJ
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[§][JJ][ffi]0JlIIrr1JIT]
Channel destination
@Jl[JJ][I~m~~IT]
[QJ[3Jfi](TIG]mmJmJ
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Local sample address code
@:DTI[TImmJlI]lIIl0
[Q][JJ][TI[TIGJIITIlIIlIT]
lTIIDmmrTI[I[]lIIlIT]
[§]mmmlTI[IUTI0
Time-at-day sample address code
@Jl[JJ]mrnrTIJ0lTI0
~[TI0
[Q]GJl]]mGJITIG](TI
[]]J][]][TI[][I[]cru:IJ]
Byte
o
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
AES Channel Status Reference
-
Professional Format-
LABEL
BYTE:blt
Delined
States
Description
FORMAT 10
0:0
1
identifies
block as AES professional format
AUDIO DATA
0:1
a
1
nannal
audio
mode
non
audio
mode
EMPHASIS
0:2-4
000
100
110
111
Emphasis not
indicated.
rcvr default 10 no
emphasis;
manusl
override
enabled
no emphasis, manual override disabled
50/1 5ms
emphasis, manual
override
disabled
CCITT
J.17
emphasis (w/6.5dB
insertion loss
at 800Hz)
SIGNAL LOCK
0:5
a
1
default and
souree
sampling frequency locked
source
sampling frequency unlocked
SAMP FREQ
0:6-7
00
01
10
11
sampling frequency not indicated, revr default to 48kHz,
manual override enabled
48kHz
sampling
frequency, manual override disabled
44.1 kHz sampling frequency, manual override disabled
32kHz sampling
frequency,
manual override disabled
MODE
1:0-3
0000
0001
0010
0011
0100
mode
not
indicated
,
receiver
default
to
2-channel mode
2-channe
l
mode, manual
override
disabled
single
channel
mode
(monophonic).
manual override disabled
primarylsecondary mode
(channel
1 is primary), manual
override disabled
stereophonic
mode
(channel
1 is
le~
Channel),
manual override disabled
USER BITS
1:4 -7
0000
0001
0011
default,
no user
information indicated
192-bit block
struclure,
preamble
oZ·
indicates
star1 of block
user defined
AUXILIARY
SAMPLE BITS
2:0-2
000
001
011
20-bit audio sample word length, use of auxiliary sample bits
not defined
24-bit audio sample word length, auxiliary sample bits used
for main audio
sample data
reserved for user defined
applications
WD LNGTH
2:3-5
000
001
010
011
100
101
word
length not
indicated
word
length
in bits
is
23119 if maximum word length is
24/2
0
word
length in bits is
22118
~
maximum word length
is
24/20
word length in bits is
21117
if maximum word length
is 24/20
word length
in
bits is
20/16 if
maximum word length
is 24/20
word length
in
bits is 24/20 if maximum word length
is
24/20
RSRVD
2:6-7
reserved
and set to logic
nO"
MULTI
CH
3 :0-7
reserved
and set to
logic
~
O"
REF SIG
4:0-1
4:2-7
00
01
10
not a digital
audio
reference signal (default)
grade 1
reference signal
grade
2
reference signal
reserved
and
set to logic
~O~
RESERVED
5:0-7
reserved and set to logic
dO·
CHANNEL
ORIGIN
6-9:0-7
alphanumeric channel origin data, first character
in
message is
byte
6.
bits
O·
7 each byte
-
ASCII data with no parity
bit,
LSB
first; nonpri
nted
control
characters (codes 01-1 Fhex
and 7F
hex)
are
not permitled
,
default value
is
logic
"0·
(code 00 hex, ASCII nUll)
CHANNEL
DESTINATION
10-13:0-7
alphanumeric
channel
destination
data,
first
character
in
message
is
byte
10.
bits
0-7 each byte - ASCII data with
no
parity
bit,
LSB
fi
rst
;
nonprinted
control
characlers
(codes
01-1 Fhex and 7F hex) are not permitled
,
defauN value
is
logic
"0' (code 00
hex,
ASCII null)
LOCAL
SAMPLE
ADDRESS CODE
14-17:0-7
32-bit binary local sample address code, value is of first sample
of current block, bits 0-7 each byte - LSB first, default value is
logic
·0"
TIME OF DAY
SAMPLE
ADDRESS CODE
18-21
:0-7
23-bit binary time-of-day
sample
address code, bits 0-7 each
byte
-
LSB first, default value is logic
"0".
RELIABILITY
FLAGS
22:0-7
data reliabi lity
flags;
set
to
a
(default)
if reliable
;
set
t01
if
unreliable.
bits
0-3:
undefined;
bit
4:
bytes
0-5;
bit
5:
bytes
6-13;
bit
6:
bytes
14-16; bit
7:
bytes 18-21
CRCC
23:0-7
conveys
information
to
test valid reception of entire block
(byteSO-22)
3-31
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