Status From Dsp Micom - Yamaha RX-V795a Service Manual

(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.
10.CPU/1 02 10
10.VER/1 5A 30
10.BIO/1 00 00
10.BI2/1 00 00
10.BI4/1 00 00
[CPU/1] <High Byte>
bit7 MUTE Request
bit6 fs 000B:analog 001B:32k
bit5 010B:44.1k 011B:48kHz
bit4 others:not defined
acmod: If it is 1000B or more with DTS 7.1 signal, the DSP block will be muted.
<Low Byte>
bit7 AC3 DECODE OK
bit6 DTS DECODE OK
bit5 Red DTS record (flashes ad lights)
bit4 1 in audio models other than PCM
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-microproc-
essor 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 micro-
processor, the main microprocessor visually operates in the same way as with digital
unlocking.
[CPU/2] <High Byte>
bit7 AC3 KARAOKE
bit6 DIR2 LOCKN
bit5 DIR2 ERR
bit4 AC3D MUTE
<Low Byte> Always "00"
[CHS/1/2] IEC958 channel status bits 00-31 available from DIR2
<CHS/1 Hi-byte> bits 00-07
<CHS/1 Lo-byte> bits 08-15
<CHS/1 Hi-byte> bits 16-23
<CHS/1 Lo-byte> bits 24-31
[VER/1/2] 4-byte ASCII code of sub CPU version data
[SUM1/2] Displays the check sum of sub microprocessor program area with ASCII 4 bytes in a hexadecimal number.
[BI0/1/2] Displays the bit stream information contained in Dolby Digital (AC-3)/DTS signal from the first byte.
[BI1-5/1/2] Displays the bit stream information contained in Dolby Digital (AC-3) signal from the fifth byte.
10.CPU/2 6A 00 10.CHS/1 00 01
10.VER/2 36 42 10.SUM/1 44 39
10.BI0/2 00 00 10.BI1/1 00 00
10.BI2/2 00 00 10.BI3/1 00 00
10.BI4/2 00 00 10.BI5/1 00 00
bit3
acmod 0000B:1+1 0001B:1/0
bit2 0010B:2/0 0011B:3/0
bit1 0100B:2/1 0101B:3/1
bit0
0110B:2/2 0111B:3/2 1000B:7.1
bit3 DEM MUTE (without RF signal)
bit2 IEC958 digital format error
bit1 IEC958 commercial-use device bit
bit0 IEC958 digital data bit (DAT, CD-
ROM, etc.)
bit3 On-board write mode
bit2 The number of digital inputs is 2
bit1 DSP is AC3D2 (DTS present)
bit0 RF DEM present
RX-V795a/RDS/HTR-5170
10.CHS/2 00 00
10.SUM/2 43 33
10.BI1/2 00 00
10.BI3/2 00 00
10.BI5/2 00 00
10.CPU/1 00 00
High Byte
Low Byte
0 0
Indicate
bit 7 6 5 4 3 2 1 0
bit
Indicate 3 2
7 6
0 0 0 0 0
0 0
1 1 1 1 1
0 0
2 2 2 2 2 0 0
3 3 3 3 3 0 0
4 4 4 4 4
0 1
5 5 5 5 5 0 1
6 6 6 6 6
0 1
7 7 7 7 7
0 1
8 8 8 8 8 1 0
9 9 9 9 9
1 0
A A A A A
1 0
B B B B B
1 0
C C C C C 1 1
D D D D D
1 1
E E E E E
1 1
F F F F F 1 1
"0"
"1"
1 0
5 4
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
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