Function Table Of Ic - Sharp MD-MT180 Service Manual

Portable
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MD-MT180
IC401 RH-iX0484AWZZ :System Microcomputer (IX0484AW) (1/2) Main PWB Version B,C,X
IC401 RH-iX0529AWZZ :System Microcomputer (IX0529AW) (1/2) Main PWB Version D
Pin No.
Port Name
Terminal Name Input/Output
1
P12
CIN
2
P13
SPIN
3*
P14
RFPCNT
4
P15
DISCPR
5*
TIOCA2
SPWDS
6*
P17
LCDRST
7
VSS
VSS
8*
TxD0
RMDAT
9
TxD1
DSPDAT
10*
P32
P32
11
P33
DSPSTB
12*
SCK0
SCK0
13
SCK1
DSPSCK
14
PE0
_EPCS
15
PE1
EEPD
16
PE2
EEPK
17
PE3
EPRT
18
VSS
VSS
19*
PE4
PE4
20
PE5
SYRS
21
PE6
_SYRD
22
PE7
_SYWR
23-30
PD0-PD7
SYD0-SYD7
31
VSS
VSS
32
PC0
RCLAT
33
PC1
_MCPGI
34
PC2
_INPGI
35
PC3
INPGCK
36
PC4
RCPCNT
37*
PC5
TEST1
38*
PC6
TEST0
39
PC7
JPNP
40
VCC
VCC
41
PB0
OPICGA
42
PB1
PBOPON
43
PB2
PBLAT
44
PB3
LDON
45
PB4
DISCP
46
PB5
SGAIN
47
PB6
RACLK
48
PB7
RADAT
49
VSS
VSS
50*
PA0
DLBHP
51
PA1
SLCNT1
52
PA2
SLCNT2
53
PA3
SLCNT3
54*
P20
DHLAT
55
P21
EMPH0
56
P22
BUZOUT
57
MD0
MD0
In this unit, the terminal with asterisk mark (*) is open terminal which is not connected to the outside.

FUNCTION TABLE OF IC

Output
Track cross signal/focus drive detection
Input/Output
Spindle motor FG pulse detection input
Output
RF control
Output
Disc record inhibition switch input
Output
Reserve
Output
Reserve
Ground potential
Output
Remote control indication data output
Output
Unit indication data output
Output
Reserve
Output
Main unit display strobe output
Output
Serial I/O clock output (not used)
Output
Unit indication data clock output
Output
EEPROM chip selection output
Input/Output
EEPROM serial data input/output
Output
EEPROM serial clock output
Output
EEPROM write protection
Ground potential
Output
Reserve
Output
System LSI register selection output
Output
System LSI read enable output
Output
System LSI write enable output
Input/Output
System LSI parallel data bus
Ground potential
Output
Record audio IC data latch output
Input
Microphone plug insertion detection input
Input
Line/digital plug insertion detection
Input
Line/digital plug type detection
Input/Output
Record circuit power control output
Input
Test mode setting input 1
Input
Test mode setting input 0
Input
Kana conversion/Kana input existence/nonexistence discrimination
Positive power supply
Output
P.U detection sensitivity switching output
Output
Audio IC output stage control output
Output
Audio IC data latch output
Output
P.U. laser ON/OFF control output
Output
RF amp TE polarity switching output
Output
RF amp gain polarity switching output
Output
Audio IC data clock output
Output
Audio IC serial data output
Ground potential
Input
Judgement input
Output
Stepping control 1
Output
Stepping control 2
Output
Stepping control 3
Output
Latch output for dolby headphone
Output
Audio emphasis control output 0
Output
Beep sound pulse output
Input
Operation mode selection input 0
– 48 –
Function

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