Status From Dsp Micom - Yamaha DSP-A595a Service Manual

No.10 STATUS FROM DSP MICOM
The status data from the DSP microprocessor is sequentially displayed in a hexadecimal number.
All signal processing before this menu is executed will be held.
STATUS 1st 2nd 3rd 4th
10 DVD/LD 0 00000000
10 DVD/LD 3 00000000
10 DVD/LD 6 00000000
10 DVD/LD 9 00000000
[STATUS 0]
<1st Byte>
bit7 Mute request
bit6 fs
bit5 000B:Analog 001B:32kHz
010B:44.1kHz 011B:48kHz
bit4
Others:Don't care
acmod: If it is 1000B or more with DTS 7.1 signal, the DSP block will be muted.
<2nd Byte>
bit7 AC-3 decode OK
bit6 DTS decode OK
Red DTS record
bit5
(Flashes and lights)
1 for audio other than PCM
bit4
linear audio
[Note]
IEC958: Standard to identify the PCM bit stream signal. Digital format error refers to a digital signal with the
sampling frequency undefined (neither 44.1k, 32k nor 48k). Since the operation of each device cannot be
assured at fs outside specifications, the sub-microprocessor handles this status as the forced analog mode
(ignored even if decoding is OK from the detection terminal level), and selects the signal from the analog input
terminal. Since the sub-microprocessor transmits 000B (analog) for STATUS#0 bits 4-6 to the main
microprocessor, the main microprocessor visually operates in the same way as with digital unlocking.
<3rd Byte>
bit7 AC3 KARAOKE
bit6 DIR2 LOCKN
bit5 DIR2 ERR
bit4 AC3D MUTE
<4th Byte> Always "00"
[STATUS 1] IEC958 channel status bits 00-31 available from DIR2
<1st-byte> bits 00-07
<2nd-byte> bits 08-15
<3rd-byte> bits 16-23
<4th-byte> bits 24-31
[STATUS 2] 4-byte ASCII code of sub CPU version data
[STATUS 3] Displays the check sum of sub microprocessor program area with ASCII 4 bytes in a hexadecimal number.
[STATUS 4] Displays the bit stream information contained in AC-3(DOLBY DIGITAL)/DTS Digital Surround signal from the
first byte.
[STATUS 5-9] Displays the bit stream information contained in AC-3(DOLBY DIGITAL) signal from the first byte.
10 DVD/LD 1 00000000
10 DVD/LD 4 00000000
10 DVD/LD 7 00000000
bit3 acmod
0000B:1+1
bit2
0010B:2/0
0100B:2/1
bit1
0110B:2/2
bit0
1000B:7.1
bit3 Demodulator muting (without RF signal)
bit2 IEC958 digital format error
bit1 IEC958 commercial use device bit
bit0 IEC958 digital data bit
bit3 On-board write mode
bit2 The number of digital inputs is 2 (equivalent to 595)
bit1 DSP is AC3D2 (DTS present)
bit0 RF DEM present
10 DVD/LD 2 00000000
10 DVD/LD 5 00000000
10 DVD/LD 8 00000000
Indicate
bit
Indicate
0001B:1/0
0011B:3/0
0101B:3/1
0111B:3/2
DSP-A595a
0 0
7 6 5 4 3 2 1 0
bit
3 2 1 0
7 6 5 4
0 0 0 0 0
1 0 0 0 1
2 0 0 1 0
3 0 0 1 1
4 0 1 0 0
5 0 1 0 1
6 0 1 1 0
7 0 1 1 1
8 1 0 0 0
9 1 0 0 1
A 1 0 1 0
B 1 0 1 1
C 1 1 0 0
D 1 1 0 1
E 1 1 1 0
F 1 1 1 1
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