Kenwood KDC-W8534 Service Manual page 14

KDC-W8534/W8534Y
KDC-X790
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
24,25 NC
26 NMI
27 ALE
28 DSPSTB
29 DSPA0
30 DSPRST
31 NC
32 NC
33 SEARCH
34 LOE/LIM_SW
35~39 NC
40 POND3.3
41 NC
42 PONCS
43~47 NC
48 DATA_MUTE
49 NC
50 NC (BOOT)
51~53 NC
54 MUTE L
55 MUTE R
56 NC
57 SDA
58 SCL
59 MSTOP
60~62 AN0~AN2
63 UNQID
64 AVCC
14
I/O Application
O Not used.
I Non-maskable interruption Not used.
O Not used.
O (DSP) Data strobe signal output
O (DSP) Command parameter identification signal output
O (DSP) Reset control
O Not used.
O Not used.
O Search condition output
I PU LIM detection SW
O Not used.
O D3.3V POWER ON control terminal
O Not used.
O CS7410-series power supply control terminal
O Not used.
O Data output status
O Not used.
O Mask : Not used. (output H) / Flash (write terminal)
O Not used.
O Lch audio MUTE control
O Rch audio MUTE control
O Not used.
(System µ-com) I2C data
I/O
(System µ-com) I2C clock
I/O
I Standby restart interruption
I TEST0~TEST2
I Unique ID write permission
- ADC power supply terminal
Processing Operation Description
Open output L-fixed
Open output prohibited (Hi-Z)
H : Transmitting parameter, L : Transmitting command
Open output L-fixed
Open output L-fixed
H : In search, L : Normal (x2 : L-fixed)
H : LIM
Open output L-fixed
H : POWER ON
Open output L-fixed
H:POWER ON
Open output L-fixed
L : DATA output MUTE
Open output L-fixed
(Flash) L : WRITE, H : NORMAL
Open output L-fixed
L : MUTE ON
L : MUTE ON
Open output L-fixed
L:STOP H:STOP release
PULL DOWN
L : Normal, H : During service write
BU3.3V