Sharp MD-E9000H Service Manual page 87

IC1401 RH-iX0410AWZZ: MD System Microcomputer (IX0410AW) (1/2)
Terminal Name Input/Output
Pin No.
1 4M/16M
2 64M
3 LDVAR
4* ADJS
5 CIN
6* N.C.
7 UNLOCK
8 BYTE
9 CNVSS
10* STID OUT
11* SEACH OUT
12 RESET
13* N.C.
14 VSS
15 MCCK
16 VCC
17 P85
18 DINT
19 SFSY
20 ST-ID
21 SERCH
22 MDRSW
23* CDB SEL
24 DSENSE
25 P-DOWN
26 HD ON
27 EEPRO
28 HFON
29 EEPK
30 EEPD Input/Output
31 MD DATA
32 K DATA
33 DSCK
34 DSTB
35* N.C.
36 SBO
37 SBCK
38 DISC
39 R/P
40 FOK
41 FLASH L
42 SGAIN
43 SYRS
44 SYRD
45 SYWR
46 FLASH H
47 SYS D7 Input/Output
48 SYS D6 Input/Output
49 SYS D5 Input/Output
50 SYS D4 Input/Output
51 SYS D3 Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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Output 4M/16M DRAM selection input.
Output 64M DRAM selection input.
Output LDVAR (laser power adjustment output)
Output ADJS (for automatic adjustment step check)
Input CIN (track count signal input)
— Not used.
Input ERR input. (UNLOCK of MD LSI monitor PLL)
Input GND
Input GND
Output ST-ID output.
Output MD search output.
Input RESET input.
Output Clock output.
— GND
Input EXTAL (8.4672 MHz)
Input +3.15 V
Input Input output port P85.
Input DINT (Interrupt input from MD-LSI)
Input Subcode communication frame synchro Interrupt input.
Input ST-ID input. (MD-ON)
Input CD search input. (Synchronous REC interrupt input)
Output MD RSW output.
Output CD BLK SEL output.
Input DSENSE (servo sense input from MD-LSI)
Input P-DOWN (blackout detection)
Output HDON (magnetic head power ON/OFF output)
Output EEPROM protect release output.
Output HFON
Output EEPROM serial clock output.
EEPROM data input output.
Output MD computer data input output.
Input System computer data input.
Input System computer clock input.
Output DSTB (system computer communication possible and during communication)
Output Not used.
Input Subcode serial data input.
Output Subcode communication serial clock output.
Output DISC
Output R/P output. (REC/PLAY selection)
Input FOK (focus servo condition monitor input)
Input Flash write selection.
Output SGAIN
Output MD LSI resister select signal output.
Output SYRD (MD-LSI read signal output)
Output SYWR (MD-LSI write signal output)
Input Flash write selection.
SYS D7 (data bus 7)
SYS D6 (data bus 6)
SYS D5 (data bus 5)
SYS D4 (data bus 4)
SYS D3 (data bus 3)
Function
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MD-E9000H