KDC-CX85/CPS85
5
MICROCOMPUTER’S TERMINAL DESCRIPTION
●UPD 784214GC-066 : IC7 (X32-4680-00)
Pin Pin Name I/O Function Description
Processing Operation
1 P120/RTP0 O LDON Pickup laser ON H: Laser ON
2 P121/RTP1 O TBCO Tracking filter coefficient switching signal output H: Gain-up mode
3 P122/RTP2 I TBCI Tracking filter coefficient switching signal input H: Gain-up mode
4 P123/RTP3 I RFOK Focus ON status signal input H: Focus ON
5 P124/RTP4 O XOFF Servo IC oscillation stop control
H: Oscillatin stop
6 P125/RTP5 O RST Servo IC reset terminal L: Reset
7 P126/RTP6 O SAO Servo IC address setting
8 P127/RTP7 O SSTB Servo IC communication strobe
9 VDD - VDD Positive power voltage connection terminal
10 X2 - X2 Oscillator connection terminal 2
11 X1 I X1 Oscillator connection terminal 1
12 VSS VSS GND potential connection
13 XT2 XT2 Subclock connection terminal 2
14 XT1 XT1 Subclock connection terminal 1
15 RESET I RESET Reset
16 P00/INTP1 I SBSY Sub-code Q read timing detection terminal
17 P01/INTP2 I MGSW Magazine switch H: Magazine in
18 P02/INTP2 I EJSW Eject switch H: Swtich ON
19 P03/INTP3 I COMMSW 5-line communicatin old/new swtich
H: New communication
L: Old communication
20 P04/INTP4 I DQSY Text data read permission signal input
21 P05/INTP5 I CHCON Changer control input from H/U
22 P06/INTP6 I BUDET BU instant dip detection terminal
23 AVDD - AVDD A/D converter analog power terminal
24 AVREF0 I AVREF0 AD converter reference voltage input
25 P10/ANI0 I HOT Rise in temperature detection
26 P11/ANI1 I LPS Mechanical deck position detection
27 P12/ANI2 I LOESW Loading compete switch
L: Loading complete
28 P13/ANI3 I LIMSW Limit switch
L: Pickup detection of
innermost track
29 P14/ANI4 I TYPE0 For test mode
30 P15/ANI5 I TYPE1 For test mode
31 P16/ANI6 I SLG1 For setting thread loop gain
32 P17/ANI7 I SLG2 For setting thread loop gain
33 AVSS - AVSS A/D converter reference GND terminal
34 P130/ANO0 O LPSCO A/D converter reference power control
35 P131/ANO1 O AMUTE Audio mute L: Mute ON
36 AVREF1 - AVREF1 A/D converter reference power terminal
37
P70/RxD2/SO2
I SDI Servo IC communication serial data input
38
P71/TxD2/SO2
O SDO Servo IC communication serial data output
39
P72/ASCK2/SCK2
O SCK Servo IC communication serial clock output
40 P20/RxD1/SI1 I DATAH Data input from H/U
