Sharp MD-X7H Service Manual page 124

MD-X8H
IC1401 RX-iX0227AWZZ:MD System Micon Control (IX0227AW) (1/2)
Terminal Name
Pin No.
1* P96/ANEX1
2* P95/ANEX0
3 P94/DA1
4* P93/DA0
5* P92/TB2
IN
6 P91/TB1
IN
7 P90/TB0
IN
8 BYTE
9 CNVss
10* P87/X
CIN
11* P86/X
OUT
12 RESET
13* X
OUT
14 Vss
15 X
IN
16 Vcc
17 P85/NMI
18 P84/INT2
19 P83/INT1
20 P82/INT0
21 P81/TA4
IN
22 P80/TA4
OUT
23* P77/TA3
IN
24 P76/TA3
OUT
25 P75/TA2
IN
26 P74/TA2
OUT
27 P73/TA1
IN
28 P72/TA1
OUT
29 P71/TA0
IN
30* P70/TA0
OUT
31 P67/TXD1
32 P66/RXD1
33 P65/CLK1
34 P64/CTS1/RTS1/
CTS0/CLKS1
35 P63/TXD0
36 P62/RXD0
37 P61/CLK0
38 P60/CTS0/RTS0
39 P57/RDY/CLK
40 P56/ALE
41* WFMI
42 AVCC
43 AGND
44 EFMAGC
45 EFMAGI
46 ATTR
47 GOUT
48 POUT
49 PLCK
50 EFM0
51 X700KO
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Input/Output
Output Input/Output it port P96
Output Input/Output it port P96
Output LDVAR (laser power adjustment output)
Output ADJS (for automatic adjustment step check)
Output Input/Output it port P92
Input LD SW CK input (interruption input only in single state)
Input ERR input (monitor PLL UNLOCK)
Input GND
Input GND
Output ST-ID Output
Output MD search output
Input RESETInput
— Clock output
— GND
Input EXTAL (8.4672 MHz)
— + 3.15V
Input Input/Output it port P85
Input DINT (interruption input from MD LSI)
Input DSENSE (servo sense input from MD LSI)
Input ST-ID Input (MD-ON)
Input CD search input (syncro REC suspension input from MD LSI)
Output MD RSW Output
Input FSW1 (SW power frequency selection)
Output Vari-pitch correspondence given (H)/not given (L)
Input P-DOWN (power failure detection)
Output HDON (magnetic head current ON/OFF output)
Output LD+ (loading motor + control output)
Output LD- (loading motor + control output)
Input CIN (track count signal input)
Input INN SW (inner SW detection input)
Output R-DATA
Output R-LATCH
Output R-CLK
Output DSTB (system controller communication enable and communication beingexecuted)
Output MD DATA (MD Data Output)
Input K DATA (system controller data input)
Input DSCK (system controller communication clock input)
Input 4M/16M DRAM selection input
Output R/P output (REC/PLAY selection)
OUT
Input FOK (focus servo status monitor input)
In/Output Input/Output it port P55
Output S2 Ouput
Output S1 Output
Output SYRS (MD-LSI register selection signal output)
Output SYRD (MD-LSI read signal output)
Output SYWR (MD-LSI right signal output)
In/Output SYS D7 (data bus 7)
In/Output SYS D6 (data bus 6)
In/Output SYS D5 (data bus 5)
In/Output SYS D4 (data bus 4)
In/Output SYS D3 (data bus 3)
Function
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