Microcomputer's Terminal Description - Kenwood KDV-Z930 Service Manual

KDV-Z930/Z940/Z960
Z920DVD
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3 7 63 1515 0

MICROCOMPUTER'S TERMINAL DESCRIPTION

System microcomputer MN101C49KWA (IC400 : MAIN UNIT)
Pin Name
1 VREF-
2 PA0/AN0
3 PA1/AN1
4 PA2/AN2
5 PA3/AN3
6 PA4/AN4
7 PA5/AN5
8 PA6/AN6
9 PA7/AN7
10 VREF+
11 VDD
12 OSC2
13 OSC1
14 VSS
15 XI
16 XO
17 MMOD
18 P00/SBO0/TXD0
TE
L 13942296513
19 P01/SBI0/RXD0
20 P02/SBT0
21 P03/SBO2
22 P04/SBI2
23 P05/SBT2
24 P06/NDK/BUZZER
25 P07/SYSCLK
26 P20/IRQ0
27 P21/IRQ1/ACZ
28 P22/IRQ2
29 P23/IRQ3
30 P24/IRQ4
31 P25/IRQ5
32 P26
33 P27/NRST
34 P10/TM0IO/RMOUT FUN_ON
35 P11/TM1IO
36 P12/TM2IO
37 P13/TM3IO
38 P14/TM7IO
39 P15
40 P16/TM4IO
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41 P17
42 P30/SBO1/TXD1
43 P31/SBI1/RXD1
44 P32/SBT1
45 P33/SBO3/SDA/NBR DSP-DATAH
46 P34/SBI3/NBT
47 P35/SBT3/SCL/NLDDMA DSP-CLK
4
Signal Name I/O
VREF- -
PHONE I
NOISE I
S-METER I
DISC-DET I
NO_USE I
NO_USE I
NO_USE I
NO_USE I
VREF+ -
VDD -
X'TAL O
X'TAL I
VSS -
X'TAL I
X'TAL O
GND I
PN-MC-DATA I/O
PN-SC-DATA I
PN-MC-CLK O
DVD-D-FM O
DVD-D-HOST I
DVD-CLK I
BEEP O
NO_USE O
BU-DET I
RDS-CLK I
CH-REQC I
DVD-ATN-HOST I
DSP-REQD I
PN-SC-REQ I
NO_USE O
RESET I
O
ANT-CON O
EXT-AMP O
DIMMER I
P-CON O
ACC-DET I
PARKING-DET I
NO_USE O
CH-DATAH O
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CH-DATAC I
CH-CLK O
. i
O
DSP-DATAD I
O
8
Purpose
Connected to GND
Phone input terminal
FM noise detecion input terminal
S-meter input from FM tuner
Disc sensor input. Analog detection 2.5 V Hi : Disc detected. Lo : Disc not present.
Pulled down by a resistor
Connected to GND
Connected to GND
Connected to GND
Connected to REF-CON
Connected to BU 5 V
Connected to X'tal (8.388608 MHz)
Connected to X'tal (8.388608 MHz)
Connected to GND
Connected to X'tal (32.768 KHz)
Connected to X'tal (32.768 KHz)
Connected to GND
Data output to Panel uCOM
Q Q
3 6 7 1 3
Data input from Panel uCOM
Clock output to Panel uCOM
Data output to DVD uCOM
Data input from DVD uCOM
Clock input from DVD uCOM
Beep output (2 KHz)
Open
BU detection input
Clock input from RDS
REQ input from CD-CH
Connected to DVD-CLK
REQ input from DSP
REQ input from panel uCOM
Connected to GND
System reset input
Fun power control output
Power antenna control output
External amp control output
Dimmer input
External amp ON/OFF control output
Acc detection input
Parking detection input
Open
Data output to CD-CH
u163
Data input from CD-CH
Clock output to CD-CH
.
Data output to DSP
Data input from DSP
Clock output to DSP
2 9 9 4 2 8
Processing/Operation
Below 1 V : Phone Muted. Above
2.5 V : Navigation Muted.
Threshold being checked. (Variable
depending on mode)
1 5 0 5 8 2 9 9 4
Lo : BU detected.
Lo : REST
Hi : Power ON (Same operation as DVD+B).
Hi : POW_ANT output = Hi.
Lo : DIMMER = ON
Hi : P_CON output = Hi.
Lo : Acc detected.
Hi : Parking detected.
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9 9
2 8 9 9