Main Μ-Com: Ic3 On X32- (Processor Unit) - Kenwood KCA-BT100 Service Manual

KCA-BT100
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
60 RESET
61 REQH0
62 BUDET
63 PO2
64 REQC2
65 REQC1
66 CHCON1
67 VSS0
68 VDD1
69 X2
70 X1
71 IC
72 NC
73 CHCON2
74 AVDD0
75 AVREF0
76~80 NC
MAIN µ-COM: IC3 on X32- (PROCESSOR UNIT)
Pin No. Pin Name
1,2 NC
3 LX DATA S
4 LX DATA M
5 LX CLK
6 BYTE
7 CNVSS
8,9 NC
10 RESET
11 XOUT
12 VSS
13 XIN
14 VCC1
15 NMI
16 PON2
17 LX CON
18 LX REQ M
19 MUTEN
20 RSTN
21 PON
22 BEEP
23 BOOT E
24 RESET P
4
I/O Application
I Reset input
I Communication request input from head unit
I Detection input of momentary power down
- GND
I Communication request input from CH2
I Communication request input from CH1
I Changer control input from head unit
- GND
- Power supply voltage
- Resonator connection
I Resonator connection
- Internal connection
- Not used
I CH2 control input from head unit
- A/D anolog power supply voltage
- A/D reference voltage input
- Not used
I/O Application
- Not used
O Data to master unit
I Data from master unit
I LX-BUS clock
- External data bus switching input
- Processor mode switching input
- Not used
I Forced reset from master unit
O Main clock output
- Power supply input
I Main clock input
- Power supply input
I NMI interruption input
O Circumference power supply control (5V)
I Start-up request from master unit
I Communication request from master unit
I/O Codec mute
O Codec reset
O Circumference power supply control (A8V)
O Beep output
I Test mode input
I/O Module reset output
Processing / Operation / Description
L: Reset
L: Communication request is found
H: Detection of momentary power down
L: Communication request is found
L: Communication request is found
L: Changer control request
L: CH2 control request
Processing / Operation / Description
L fixed
Pull-up (B.U.)
Pull-up (B.U.)
Connects to GND
Pull-down (GND)
L fixed
L: Reset
Connects to GND
Connects to B.U.5V
Pull-up (B.U.)
L: ON
H: Slave unit ON, L: Slave unit OFF
L: Mute
L: Reset
H: ON
2kHz
L: Test mode
L: Reset