Yamaha DSP-A5 Service Manual page 17

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No.10 STATUS INFORMATION FROM DSP
The status data from the DSP block is sequentially displayed in a hexadecimal number.
Signal route is the same as "2. EFFECT OFF" of "No. 4 PRO LOGIC".
1 0 C P U / 1 0 0 0 0
1 0 C H S / 2 0 0 0 0
1 0 B I 2 / 1 0 0 0 0
1 0 B I 3 / 2 0 0 0 0
1 0 B I 5 / 1 0 0 0 0
[CPU/1]
<High Byte>
bit7
bit6
bit5
bit4
[Note]
When acmod is beyond 1000B, it is DTS 7.1 signal. And the DSP block will be muted.
The acmod of DTS 2/0 is as 0000B:1+1.
TE
L 13942296513
<Low Byte>
bit7
bit6
bit5
bit4
[Note]
IEC958: Standard to identify the PCM bit stream signal. Digital format error refers to a digital signal with the
sampling frequency undefined (neither 32k,44.1k,48k,64k,88.2k nor 96k). Since the operation of each device
cannot be assured at fs outside specifications, this status handled as the forced analog mode (ignored even if
decoding is OK from the detection terminal level), and the signals from the analog input terminal will be
selected. Bits 4-6 of "CPU/1" will be 000B (Analog), and the microcomputer operates in the same way as with
digital unlocking.
[CPU/2]
<High Byte>
bit7
bit6
bit5
bit4
<Low Byte> Always "00"
www
[CHS/1,/2] IEC958 channel status bits 00-31 available from DIR5.
<CHS/1 High Byte>
<CHS/1 Low Byte>
<CHS/2 High Byte>
.
<CHS/2 Low Byte>
[BI0/1,/2] Displays the bit stream information contained in AC-3(DOLBY DIGITAL)/DTS Digital Surround signal from the first byte.
[BI1-5/1,/2] Displays the bit stream information contained in AC-3(DOLBY DIGITAL) signal from the first byte.
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High
Low
1 0 C P U / 1 0 0 0 0
1 0 B I 0 / 1 0 0 0 0
1 0 B I 2 / 2 0 0 0 0
1 0 B I 4 / 1 0 0 0 0
1 0 B I 5 / 2 0 0 0 0
Mute request bit3
fs bit2
000B:Analog 001B:32kHz
bit1
010B:44.1kHz 011B:48kHz
100B:64kHz 101B:88.2kHz
bit0
110B:96kHz 111B:undefined
AC-3 DECODE OK bit3
DTS DECODE OK bit2
Red DTS record
bit1
(Flashes and lights)
1 for audio other than PCM
bit0
linear audio
AC3 KARAOKE bit3
DIR2 LOCKN bit2
DIR2 ERR bit1
AC3D MUTE bit0
bits 00-07
x ao
y
bits 08-15
bits 16-23
i
bits 24-31
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8
acmod
0000B:1+1 0001B:1/0
0010B:2/0 0011B:3/0
0100B:2/1 0101B:3/1
0110B:2/2 0111B:3/2
1000B:7.1
Q Q
3 6 7 1 3
DEM (Demodulator) MUTE
(without RF signal)
IEC958 digital format error
IEC958 commercial-use device bit
IEC958 digital data bit
1
0
DSP is AC3D2 (DTS present)
RF DEM (Demodulator) present
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.
2 9 9 4 2 8
1 0 C H S / 2 0 0 0 0
1 0 B I 0 / 2 0 0 0 0
1 0 B I 3 / 1 0 0 0 0
1 0 B I 4 / 2 0 0 0 0
Indicate
bit 7 6 5 4
Indicate
0
1
2
3
4
5
6
7
1 5 0 5 8 2 9 9 4
8
9
A
B
C
D
E
F
m
co
DSP-A5
9 9
0 0
3 2 1 0
bit
3 2 1 0
7 6 5 4
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
2 8 9 9
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
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