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SD-NX10H
1
4M/16M
Output
4M/16M DRAM selection input
2
64M
Output
64M DRAM selection input
3
LDVAR
Output
LDVAR (laser power adjustment output)
4*
ADJS
Output
ADJS (for automatic adjustment step check)
5
CIN
Input
CIN (track count signal input)
6*
NC
—
Not used
7
UNLOCK
Input
ERR input (UNLOCK of MD LSI monitor PLL)
8
BYTE
Input
GND
9
CNVss
Input
GND
10*
STID OUT
Output
ST-ID output
11*
SEACH OUT
Output
MD search output
12
RESET
Input
RESET input
13*
NC
Output
Clock output
14
Vss
—
GND
15
MCCK
Input
EXTAL (8.4672MHz)
16
Vcc
Input
+3.15V
17
P85
Input
Input output port P85
18
DINT
Input
DINT (Interrupt input from MD-LSI)
19
SFSY
Input
Subcode communication frame synchro Interrupt input
20
ST-ID
Input
ST-ID input (MD-ON)
21
SERCH
Input
CD search input (Synchronous REC interrupt input)
22
MDRSW
Output
MD RSW output
23*
CDB SEL
Output
CD BLK SEL output
24
DSENSE
Input
DSENSE (servo sense input from MD-LSI)
25
P-DOWN
Input
P-DOWN (blackout detection)
26
HD ON
Output
HDON (magnetic head power ON/OFF output)
27
EEPRO
Output
EEPROM protect release output
28
HFON
Output
HFON
29
EEPK
Output
EEPROM serial clock output
30
EEPD
Input/Output
EEPROM data input output
31
MD DATA
Output
MD computer data input output
32
K DATA
Input
System computer data input
33
DSCK
Input
System computer clock input
34
DSTB
Output
DSTB (system computer communication possible and during communication)
35*
NC
Output
Not used
36
SBO
Input
Subcode serial data input
37
SBCK
Output
Subcode communication serial clock output
38
DISC
Output
DISC
39
R/P
Output
R/P output (REC/PLAY selection)
40
FOK
Input
FOK (focus servo condition monitor input)
41
FLASH L
Input
Flash write selection
42
SGAIN
Output
SGAIN
43
SYRS
Output
MD LSI resister select signal output
44
SYRD
Output
SYRD (MD-LSI read signal output)
45
SYWR
Output
SYWR (MD-LSI write signal output)
46
FLASH H
Input
Flash write selection
47
SYS D7
Input/Output
SYS D7 (data bus 7)
48
SYS D6
Input/Output
SYS D6 (data bus 6)
49
SYS D5
Input/Output
SYS D5 (data bus 5)
50
SYS D4
Input/Output
SYS D4 (data bus 4)
51
SYS D3
Input/Output
SYS D3 (data bus 3)
IC1401 RH-iX0410AWZZ: MD System Microcomputer (IX0410AW) (1/2)
Pin No.
Function
Terminal Name Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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