Dsp Ram Check - Yamaha RX-V1200 Service Manual

CS1-5: Indicates channel status information of the input signal (IEC60958).
BY1-4: Indicates information of the bit stream included in the DOLBY DIGITAL signal.
BC1-4: Indicates information of the bit stream included in the dts signal.
YS1-3: Indicates device status information of YSS938 (IC514). * The numeric value in the figure is an example for
reference.
Byte No. Function
1 YSS MUTE Reg
2 YSS MODE Reg
3 YSS IPORT BIT 7-0
4 YSS IPORT BIT 14-8
5 YSS OPORT
CS: CS49329 Unsolicited Messages (AUTODETECT_RESPONSE)
MTT: Mute Trigger
Byte No.
1 Mute condition
2 Factor of the last mute
3 Error count of YSS938-FSCNT
4 Mute count by YSS938-FSCNT
5 Error factor of down load of CS49329

15. DSP RAM CHECK

This menu is used to self-diagnose whether or not the bus connection for the YSS938 and the external RAM is made
properly.
During signal processing, the status before execution of this menu is maintained.
The address bus and the data bus are checked and the connection condition is displayed.
When no error is detected, "NoEr" appears on display.
YSS938 Bus Check
Byte No.
1
2
3
4
5
Function
Display Description
WAIT Bus is being checked.
NoEr No error detected.
DATA Data bus shorted or open.
RSCS /RAS or /CAS shorted, or open.
ADDR Address bus shorted or open.
RX-V1200/RX-V1200RDS/HTR-5490/RX-V2200
Function
IEC 1937 Preamble Pc
Data Stream Reg
Status Reg
YSS ZERO Reg
MIREG
Byte No. Function
1 DIR Status
2 DIR fs
3 DIR fs count
4 YSS ZEROBF
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