Sharp DV-550U, Руководство по обслуживанию

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DV-550U
Microcomputer / CD·subcode interface terminal list
Pin No. Pin name Type Direction
3
HD15 3-S I/O
(CDCLK) (I) (I)
4
HD14 3-S I/O
(CDDAT) (I) (I)
5
HD13 3-S I/O
(CDFRM) (I) (I)
6
HD12 3-S I/O
(CDERR) (I) (I)
7
HD11 3-S I/O
(SCCLK) (O) (O)
9
HD10 3-S I/O
(SCDAT) (I) (I)
10
HD9 3-S I/O
(SCSYN) (I) (I)
11
HD8 3-S I/O
(SCFRM) (I) (I)
12
14-17 HD[7:0] 3-S I/O
19-21
Pin No. Pin name Type Direction Function
When 16-bit bus width is selected, (HWID=low)
It works as the microcomputer data bus of 15th bit.
When 8-bit bus width is selected, (HWID=high)
It works as the terminal to input bit clock from DC-DSP.
When 16-bit bus width is selected, (HWID=low)
It works as the microcomputer data bus of 14th bit.
When 8-bit bus width is selected, (HWID=high)
It works as the terminal to input the stream/PCM data from CD-DSP.
When 16-bit bus width is selected, (HWID=low)
It works as the microcomputer data bus of 13th bit.
When 8-bit bus width is selected, (HWID=high)
It works as the terminal to input frame synchronous signal from CD-DSP.
When 16-bit bus width is selected, (HWID=low)
It works as the microcomputer data bus of 12th bit.
When 8-bit bus width is selected, (HWID=high)
It works as the terminal to input error signal to CD-DSP.
When 16-bit bus width is selected, (HWID=low)
It works as the microcomputer data bus of 11th bit.
When 8-bit bus width is selected, (HWID=high)
It works as the terminal to output the subcode reading clock to the
subcode interface of CD-DSP.
When 16-bit bus width is selected, (HWID=low)
It works as the microcomputer data bus of 10th bit.
When 8-bit bus width is selected, (HWID=high)
It works as the terminal to input subcode data from subcode interface of
CD-DSP.
When 16-bit bus width is selected, (HWID=low)
It works as the microcomputer data bus of 9th bit.
When 8-bit bus width is selected, (HWID=high)
It works as the terminal to input the subcode synchronous signal from the
subcode interface of CD-DSP.
When 16-bit bus width is selected, (HWID=low)
It works as the microcomputer data bus of 9th bit.
When 8-bit bus width is selected, (HWID=high)
It works as the terminal to input the frame synchronous signal from the
subcode interface of CD-DSP.
It works as the microcomputer bus of bits 7 thru 0.
Microcomputer interface / CD·subcode interface
General port terminal list
Pin No. Pin name Type Direction
2 GPSI I I
122-123 GPAIO[1:0] 3-S I/O
159 GPSO O O
General port
Function
General purpose terminal.
General input/output terminal. After resetting, it becomes the input direction.
General output terminal.
12-13