KAC-X522
5
Pin No. Pin Name I/O Function Processing Operation Description
18 SCL AMP I/O CLK input/output AMP communication
19 AUDIO SCL I/O CLK input/output with audio chip
20 AUDIO SDA I/O Data input/output with audio chip
21 AUDIO MUTE O Mute output to audio chip H : Mute OFF, L : Mute ON
22 E2P SCL I/O CLK input/output with E2PROM
23 E2P SDA I/O Data input/output with E2PROM
24 NC - Not used
25~28
DIP-SW1~DIP-SW4
IAMP address setting
29 MODEL1 I Model setting 1
30 MODEL2 I Model setting 2
31,32 NC - Not used
33 VSS1 - GND
34~37 NC - Not used
38 LCD-ILL O LCD backlight switch H : ON, L : OFF
39 WHITE-LED O Triangle illumination switch H : ON, L : OFF
40 NC - Not used
41~43 ATT1~ATT3 O Output attenuate due to rise in temperature 1~3 H : Attenuate, L : Not attenuate
44,45 NC - Not used
46 COMM-SW O Communication IC power switch H : ON, L : OFF
47~50 NC - Not used
51 D-PWER O D class amplifier power supply control H : ON, L : OFF (2ch/4ch L fixed)
52 DC-DET I Speaker output DC voltage detection H : Normal, L : Abnormal
53 NC - Not used
54 POWER-ON O Amplifier power supply control H : ON (D/AB class), L : OFF
55 5VSW O 5VSW H : OFF, L :ON
56 MUTE1 O Amplifier section input stage mute control H :OFF, L :ON
57 MUTE2 O Driver stage pop-noise mute control H : OFF, L : ON
58 FAN1 O Fan rotation control H : Operate, L : Stop
59 FAN2 O Fan speed control H : Low speed, L :High speed
60 RESET - Hard reset H : Normal, L : Reset
61 PCON I Amplifier power control H : OFF, L : ON
62 LX CON I LX-BUS communication control H : OFF, L : ON
63 LX REQ M I Data receive request from head unit H : ON, L : OFF
64 NC - Not used
65 V DOWN I Momentary power down detection H : ON (Power down detection), L : OFF (L fixed)
66 NC - Not used
67 VSS0 - GND
68 VD1 - VDD
69 X2 - Main clock input 1
70 X1 - Main clock input 2
MICROCOMPUTER’STERMINAL DESCRIPTION
