Sharp DV-760X, Руководство по обслуживанию

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DV-760X
Pin No. Pin name Type Direction Function
HTYPE = L
It works as HACK# (acknowledge) output terminal for connection to
32 HACK# Motorola type microcomputer.
(HR/W#) It can be used as the weight terminal for connection to the general pur
pose microcomputer. For 3-state output, connect the pull-up resistor.
Interrupt request. If interrupt status register is read, interrupt is masked or
34 HIRQ# 3-S O device is reset, the signal is deasserted.
For 3-state output, connect the pull-up resistor.
The bus width of the microcomputer interface If the device is worked as
CD-G decoder or CD-DSP is connected, select the 8-bit bus mode.
35 HWID I I Fix it before power up.
L=8bit bus mode
H=16bit bus mode
When HWID is H (16-bit bus MODE), byte order is set.
Setting is valid only when HWID is H.
36 HORD I I Fix it before power up.
L=HD [15:8] is regarded as m.s. byte. (Motorola type)
H=HD [7:0] is regarded as m.s. byte. (Intel type)
Bus type of microcomputer interface is set.
37 HTYPE I I
Fix it before power up.
L=Motorola type
H=General purpose type
141 RESET# I I RESET is input.
142 IDLE 3-S O It is output to indicate the idle state.
Microcomputer interface terminal list
Microcomputer interface
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.
Microcomputer / CD·subcode interface terminal list
Microcomputer interface / CD·subcode interface
3
HD15 3-S I/O
(CDERR) (I) (I)
4
HD14 3-S I/O
(CDFRM) (I) (I)
5
HD13 3-S I/O
(CDDAT) (I) (I)
6
HD12 3-S I/O
(CDCLK) (I) (I)
7
HD11 3-S I/O
(SCCLK) (O) (O)
9
HD10 3-S I/O
(SCDAT) (I) (I)
Function
General purpose terminal.
General input/output terminal. After resetting, it becomes the input direction.
General output terminal.
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
11-13