Kenwood KCA-IP500 Service Manual page 3

Ipod interface
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MICROCOMPUTER'S TERMINAL DESCRIPTION
Active
Pin No.
Pin Name
(H/L)
10
H
LX_RST
10
L
RESET
11
XOUT
12
VSS
13
XIN
14
VCC1
15
NMI
16
L
BU_DET
17
L
LX_CON
18
LX_REQ_M
19
N.C
20
H
LX_MUTE
21
H
Charger Con
22~26
N.C
27
DATAI
28
DATAG
29
LX_DATA_S
30
LX_DATA_M
31
LX_CLK
32
LX_REQ_S
33
ROM_SDA
34
ROM_SCL
35
H
ROM_WR
36~38
N.C
39
L
FLASH_EPM
40~43
N.C
44
H
FLASH_CE
45~59
N.C
60
VCC2
61
TEST
62
VSS
63~71
N.C
72
L
iPOD_DET
73~84
N.C
85,86
L
SW1, SW2
87~93
N.C
94
AVSS
95
N.C
96
VREF
97
AVCC
98~100
N.C
I/O
Application
I
Hard-resetting to the slave unit
I
Reset input
O
Main clock output
I
Power supply input
I
Main clock input
I
Power supply input
I
NMI interruption input
I
Momentary power down detection
I
Startup request to the slave unit
I
Communication request to the slave unit
O
Not used.
O
Mute request from slave unit
O
iPOD recharging control
O
Not used.
I
Data from iPOD
O
Data to iPOD
O
Data from slave unit
I
Data to slave unit
I
LX BUS clock
O
Communication request from slave unit
I/O
ROM correction E2PROM data
I/O
ROM correction E2PROM clock
ROM correction E2PROM write mode
I
setting
O
Not used.
µ-com flash EPM
I
O
Not used.
µ-com flash CE
I
O
Not used.
I
Power supply input
I
Test mode setting
I
Power supply input
O
Not used.
I
iPOD connection detection
O
Not used.
O
Switch for mode switching
O
Not used.
I
Analog power supply input
O
Not used.
I
Reference voltage input
I
Analog power supply input
O
Not used.
KCA-IP500
Processing / Operation / Description
H : Normal, L : Reset
Reset IC or LX_RST input, H : Normal, L : Reset
Connected to Ceralock resonator (12.5MHz)
Connected to GND
Connected to Ceralock resonator (12.5MHz)
Connected to B.U 5V
Connected to B.U 5V via register.
B.U voltage detection, H : When down, L : Normal
H : Slave unit OFF, L : Slave unit ON
L : Mute ON, H : Mute OFF
iPod re-charging power supply circuit control
H : iPod re-charging power supply circuit ON
L : iPod re-charging power supply circuit OFF
EEPROM write recognition terminal
H : EEPROM write, L : Normal
Connected to GND via register.
Connected to B.U 5V via register.
Connected to B.U 5V.
L : Test mode, H : Normal
Connected to GND.
iPod connection detection
H : iPod not connected, L : iPod connected
Connection unit recognition SW
Connected to GND.
Connected to GND.
Connected to B.U 5V.
3

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