– 48 –
MD-MT180
FUNCTION TABLE OF IC
1
P12
CIN
Output
Track cross signal/focus drive detection
2
P13
SPIN
Input/Output
Spindle motor FG pulse detection input
3*
P14
RFPCNT
Output
RF control
4
P15
DISCPR
Output
Disc record inhibition switch input
5*
TIOCA2
SPWDS
Output
Reserve
6*
P17
LCDRST
Output
Reserve
7
VSS
VSS
—
Ground potential
8*
TxD0
RMDAT
Output
Remote control indication data output
9
TxD1
DSPDAT
Output
Unit indication data output
10*
P32
P32
Output
Reserve
11
P33
DSPSTB
Output
Main unit display strobe output
12*
SCK0
SCK0
Output
Serial I/O clock output (not used)
13
SCK1
DSPSCK
Output
Unit indication data clock output
14
PE0
_EPCS
Output
EEPROM chip selection output
15
PE1
EEPD
Input/Output
EEPROM serial data input/output
16
PE2
EEPK
Output
EEPROM serial clock output
17
PE3
EPRT
Output
EEPROM write protection
18
VSS
VSS
—
Ground potential
19*
PE4
PE4
Output
Reserve
20
PE5
SYRS
Output
System LSI register selection output
21
PE6
_SYRD
Output
System LSI read enable output
22
PE7
_SYWR
Output
System LSI write enable output
23-30
PD0-PD7
SYD0-SYD7
Input/Output
System LSI parallel data bus
31
VSS
VSS
—
Ground potential
32
PC0
RCLAT
Output
Record audio IC data latch output
33
PC1
_MCPGI
Input
Microphone plug insertion detection input
34
PC2
_INPGI
Input
Line/digital plug insertion detection
35
PC3
INPGCK
Input
Line/digital plug type detection
36
PC4
RCPCNT
Input/Output
Record circuit power control output
37*
PC5
TEST1
Input
Test mode setting input 1
38*
PC6
TEST0
Input
Test mode setting input 0
39
PC7
JPNP
Input
Kana conversion/Kana input existence/nonexistence discrimination
40
VCC
VCC
—
Positive power supply
41
PB0
OPICGA
Output
P.U detection sensitivity switching output
42
PB1
PBOPON
Output
Audio IC output stage control output
43
PB2
PBLAT
Output
Audio IC data latch output
44
PB3
LDON
Output
P.U. laser ON/OFF control output
45
PB4
DISCP
Output
RF amp TE polarity switching output
46
PB5
SGAIN
Output
RF amp gain polarity switching output
47
PB6
RACLK
Output
Audio IC data clock output
48
PB7
RADAT
Output
Audio IC serial data output
49
VSS
VSS
—
Ground potential
50*
PA0
DLBHP
Input
Judgement input
51
PA1
SLCNT1
Output
Stepping control 1
52
PA2
SLCNT2
Output
Stepping control 2
53
PA3
SLCNT3
Output
Stepping control 3
54*
P20
DHLAT
Output
Latch output for dolby headphone
55
P21
EMPH0
Output
Audio emphasis control output 0
56
P22
BUZOUT
Output
Beep sound pulse output
57
MD0
MD0
Input
Operation mode selection input 0
IC401 RH-iX0484AWZZ :System Microcomputer (IX0484AW) (1/2) Main PWB Version B,C,X
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.
IC401 RH-iX0529AWZZ :System Microcomputer (IX0529AW) (1/2) Main PWB Version D
