Sharp IM-MT899H Service Manual page 46

IM-MT899H/IM-MT899W
IC401 RH-iX2992AFZZ : System Microcomputer (IX2992AF) (2/3)
Port Name Terminal Name Input/Output
Pin No.
57* SCK0 SCK0
58 SCK1 DSPSCK
59 VSS VSS
60 P60 DISCPR
61 P61 SLCNT3
62 P62 SLCNT2
63 P63 SLCNT1
64 P27 SENSE
65 P26 PBLAT
66* TIOCB4 MCMON
67 P24 LEDONG
68 P23 LEDONB
69 TIOCC3 BUZOUT
70 P21 LEDONR
71 P20 FOK
72 FWE FWE
73 RES RESET
74 NMI DCIN
75 STBY STBY
76 VCC VCC
77 XTAL XTAL
78 EXTAL EXTAL
79 VSS VSS
80 PF7 EJSW
81 VCC VCC
82 PF6 DCNT
83 PF5 JACKIN
84 PF4 LDCNTD
85 PF3 PLL_SW
86 PF2 RESET
87 PF1 LDCNTU
88 PF0 CPU_CS
89 TXD2 CPU_SO
90 RXD2 CPU_SI
91 SCK2 CPU_SCK
92 IRQ7 CPU_INT
93 AVCC AVCC
94 VREF VREF
95 AN0 PL_RC
96 AN1 TEMP
97 AN2 HKEY1
98 AN3 RKEY
99 AN4 PLVDCI
100 AN5 PLVBAT
101 DA0 LDVAR
102 DA1 VLCD
103 AVSS AVSS
104 VSS VSS
105 P17 PCNT3
106 P16 BATON
107 P15 DCON
In this unit, the terminal with asterisk mark (*) is open terminal which is not connected to the outside.
Output Serial clock output (unused)
Output Output for main unit display data clock
— Ground potential
Input Disc recording prohibition switch input
Output Stepping motor drive output 3
Output Stepping motor drive output 2
Output Stepping motor drive output 1
Input System LSI servo sense input
Output Audio IC data latch output
Output Internal operation state monitor
Output LED ON control (green)
Output LED ON control (blue)
Output Beep sound pulse output
Output LED ON control (red)
Input Focus OK signal input
Input Flash write enable
Input Microcomputer hard reset input
Input DC IN edge detection
Input Microcomputer standby input (unused)
— Positive power supply
— Crystal oscillator connection terminal
— Crystal oscillator connection terminal
— Ground potential
Input Eject lever operation detection input
— Positive power supply
Output Mechanism driver enable output
Input DC input plug insert detection
Output Recording head elevating control output D
Output Security chip PLL SW
Output Security chip RESET
Output Recording head elevating control output U
Output Security chip CS
Output Security chip data output
Input Security chip data input
Output Security chip clock output
Input Security chip interruption
— A/D.D/A converter positive power supply
— A/D.D/A converter reference voltage
Input Remote control key (RPLRC) input identification
Input Ambient temperature detection input
Input Main unit key operation detection input 1
Input Remote control key operation detection input
Input DC IN voltage (abnormal) detection input
Input Power supply voltage detection input
Output P.U. laser power setting output
Output Main unit LCD contrast control output
— A/D.D/A converter ground potential
— Ground potential
Output _DC IN input control output
Output Battery power supply line ON/OFF
Output DC power supply line ON/OFF
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Function