Microcomputer's Terminal Description - Kenwood KDC-MP928 Service Manual

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MICROCOMPUTER'S TERMINAL DESCRIPTION

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System Microcomputer : 30625MWPA46GP (X34 : IC102)
Pin No. Pin Name
1 VREF
2 AVCC
3 LX_DATA_S
4 LX_DATA_M
5 LX_CLK
6 WIRED_REMO
7 LX_MUTE
8 AUD_SDA
9 AUD_SEL
10 AUD_SCL
11 DAC_RST
12 NC
13 BYTE
14 CNVSS
15 XCIN
16 XCOUT
17 RESET
18 XOUT
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19 VSS
20 XIN
21 VCC1
22 NMI
23 PANEL_DET
24 RDS_CLK
25 LX_REQ_S
26 PON_AM
27 LX_REQ_M
28 TUN_IFC_OUT
29 RDS_AFS_L
30 RDS_AFS_M
31 RDS_QUAL
32 RDS_DATA
33 PWIC_BEEP
34 TUN_SCL
35 TUN_SDA
36 SYS_DATA
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37 VCC1
38 PAN_DATA
39 VSS
.
40 SYS_REQ
I/O Application
I Analog reference voltage
-
I Data from slave unit
O Data to slave unit
I/O LX BUS clock
I External display remote controller input
I Mute request from slave unit
O E-VOL data output terminal
O E-VOL control terminal
O E-VOL clock output terminal
O DAC reset terminal
O
-
-
I
I
I
-
-
-
-
I Not used
I Panel detection
I RDS decoder CLK input terminal
I Communication request from slave unit
I/O AM power supply control
O Communication request to slave unit
I F/E IFC OUT input terminal
I/O Constant switching at noise detection
I/O Constant switching at noise detection
I RDS decoder QUAL input terminal
I RDS decoder DATA input terminal
O Beep output
I/O F/E I2C clock input/output terminal
I/O F/E I2C data input/output terminal
Between-panel communication data
O
output terminal
-
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I Between-panel communication data input terminal
-
i
Communication request terminal from
O
system µ-com
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8
Processing / Operation / Description
LX specification
LX specification
LX specification
H : Mute ON, L : Mute OFF
SPI communication
SPI communication
SPI communication
L : DAC RESET
Output L-fixed
32768kHz
32768kHz
12MHz
Q Q
3 6 7 1 3 1 5
12MHz
H : Without PANEL, L : With PANEL
AM in operation : H, AM not in operation : Hi-Z
H : With station, L : Without station
I2C specification
I2C specification
Data output (MAX 500kbps)
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Data input (MAX 500kbps)
.
KDC-MP928/PSW9531
/PSW9531Y, XXV-01D
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