Read Sharp DV-700 (serv.man3) Service Manual online
DV-700S
DV-760S/H
DV-760S/H
Pin No.
Pin name
Type
Direction
Function
HTYPE = L
It works as HACK# (acknowledge) output terminal for connection to
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
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.
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.
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.
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
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.
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 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
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