Sharp MD-MT270HS/BK, Service Manual

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MD-MT270H
IC401 RH-iX0561AWZZ :System Microcomputer (IX0561AW) (1/2)
FUNCTION TABLE OF IC
1* P9_4/DA1 MCMON Output Internal operation status monitor
2 P9_3/DA0 LDVAR Output P.U. laser power setting output
3 P9_2 EPRT Output EEPROM write protection
4 TB1IN SPIN Input/Output Spindle motor FG pulse detection input
5 TB0IN CIN Output Track cross signal/focus drive detection
6 BYTE VSS — Ground potential
7 CNVSS VSS — Ground potential
8 P8_7 RCLAT Output Record audio IC data latch output
9 P8_6 SYCPW Output System LSI core power on/off
10 RESET _RESET Input Microcomputer hard reset input
11 XOUT EXTAL — Crystal connection terminal
12 VSS VSS — Ground potential
13 XIN XTAL — Crystal connection terminal
14 VCC VCC — Positive power supply
15 P8_5/NMI NMI Input Nonmaskable interruption input (not used)
16 INT2 _DINT Input System LSI interruption
17 INT1 _PLAY Input Unit PLAY button operation detection input
18 INT0 _REC Input Unit REC button operation detection input
19* P8_1/TA4IN Output Reserve
20 P8_0 RCPCNT Input/Output Record circuit power control output
21 TA3IN _RPLAY Input Remote control PLAY key operation detection input
22 P7_6 Output Reserve
23 P7_5 PBOPON Output Audio IC output stage control output
24 TA2OUT BUZOUT Output Beep sound pulse output
25* P7_3 CHGON Output Battery charge ON/OFF control output
26 P7_2/TA1OUT Output Reserve
27* P7_1/TB5IN Output Reserve
28* P7_0/TA0OUT Output Reserve
29 P6_7/TXD1 DSPDAT Output Unit indication data output
30 P6_6/RXD1 DSPSTB Output Main unit display strobe output
31 P6_5/CLK1 DSPSCK Output Unit indication data clock output
32* P6_4 TEST0 Input Test mode setting input 0
33 P6_3/TXD0 RMDAT Output Remote control indication data output
34 P6_2/RXD0 PCILD Input/ IF data input
35* P6_1/CLK0 SCK0 Output Serial I/O clock output (not used)
36 P6_0 OPICGA Output P.U detection sensitivity switching output
37 P5_7/CLKOUT PCLK Output Power clock
38 P5_6 SGAIN Output RF amp gain polarity switching output
39 P5_5 DISCP Output RF amp TE polarity switching output
40 P5_4 JPNP Input Kana conversion/Kana input existence/nonexistence discrimination
41* P5_3 Output Reserve
42* P5_2 Output Reserve
43 P5_1 RACLK Output Audio IC data clock output
44* P5_0 TEST1 Input Test mode setting input 1
45 P4_7 _MCPGI Input Microphone plug insertion detection input
46 P4_6 _INPGI Input Line/digital plug insertion detection
47 P4_5 INPGCK Input Line/digital plug type detection
48 P4_4 SENSE Input/Output System LSI servo sense input
49 P4_3 SLCNT1 Output Stepping control 1
50 P4_2 SLCNT2 Output Stepping control 2
Pin No.
Function
Port Name
Terminal Name Input/Output
In this unit, the terminal with asterisk mark (*) is open terminal which is not connected to the outside.