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Aiwa CSD-MD50 Manual de Serviço Página 44

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Pin No. Pin Name I/O Description
1 MCAS – Not used.
2 MRAS – Not used.
3 BUP – Not used.
4 AMUTE O Output AUDIO MUTE signal.
5 ESK O Serial clock output pin for EEPROM interface.
6 EDO O Serial data output pin for EEPROM interface.
7 EDI I Serial data input pin for EEPROM interface.
8 ECS O Output EEPROM chip select signal.
9 NC – Not used.
10 RFLCT I Input terminal for DISC reflection rate detection SW.
11 NC – Not used.
12 LS I Input pin for pickup inner-circumference detect switch.
13 LDSW I Loading mechanism, EJECT position detect switch input.
14 PBSW I Loading mechanism, PB position detect switch input. (Not used)
15 RECSW I Loading mechanism, REC position detect switch input.
16 ~ 17 NC – Not used.
18 ACOFF – Not used.
19 SREQ I Input system-computer send request signal for system-computer interface.
20 EXTDIN O External digital IN permit signal output.
21 SLOW O Loading mechanism speed control signal output.
22 LOAD O Loading mechanism operating-direction control signal output 1.
23 EJECT O Loading mechanism operating-direction control signal output 2.
24 MREQ O Output MD microcomputer send request signal for system-computer interface.
25 DRIVE O Output EFM driver ON/OFF signal.
26 ~ 36 NC – Not used.
37 MP – Connected to VSS.
38 SRST I Input MD microcomputer reset signal.
39 DGND – Connected to VSS.
40 XTALO O Crystal oscillator terminal 1 for system clock oscillator.
41 XTALI I Crystal oscillator terminal 2 for system clock oscillator.
42 ARDY I Input READY signal for system-computer interface.
43 SIN I Input serial data for system-computer interface.
44 SOUT O Output serial data for system-computer interface.
45 ACLK O Output serial clock for system-computer interface.
46 XLAT O Output latch signal for CXD2652AR interface.
47 XRST O Output reset signal for CXD2652AR.
48 XSTBY O Output standby signal for CXA2523AR.
49 NC – Not used.
50 AVSS – Connected to VSS.
51 AVREF – Connected to VDD.
52 AVDD – Connected to VDD.
IC, CXP81952M-547R
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