Aiwa XR-H560MD Service Manual page 59

IC, CXP81952
Pin No. Pin Name
1 MCAS
2 MRAS
3 BUP
4 AMUTE
5 ESK
6 EDO
7 EDI
8 ECS
9 —
10 RFLCT
11 —
12 LS
13 LDSW
14 PBSW
15 RECSW
16 —
17 —
18 ACOFF
19 SREQ
20 EXTDIN
21 SLOW
22 LOAD
23 EJECT
24 MREQ
25 DRIVE
26 —
27 —
28 —
29 —
30 —
31 —
32 —
33 —
34 —
35 —
36 —
37 MP
38 SRST
39 DGND
40 XTALO
41 XTALI
I/O
—
— Not used.
—
O Audio mute signal output.
O Serial clock output for EEPROM interface.
O Serial data output for EEPROM interface.
I Serial data input for EEPROM interface.
O EEPROM interface chip select signal output.
— Not used.
I DISC reflectance factor detection switch input.
— Not used.
I Optical pickup inner circumference detection switch input.
I Loading mechanism, EJECT position detection switch input.
I Loading mechanism, PB position detection switch input.
I Loading mechanism, RECORD position detection switch input.
—
— Not used.
—
I System control send request signal input for system control interface.
O External DIGITAL-IN enable signal output.
O Loading mechanism speed control signal input.
O Loading mechanism operational direction control signal input 1.
O Loading mechanism operational direction control signal input 2.
O MD microprocessor send request signal output for system control interface.
O EFM driver ON/OFF signal output.
—
—
—
—
—
— Not used.
—
—
—
—
—
— Connected to VSS.
I MD microprocessor reset signal input.
— Connected to VSS.
O External system clock oscillation crystal connection terminal 1.
I External system clock oscillation crystal connection terminal 2.
77
Description