Kenwood KCA-BT100 Service Manual page 5

MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name I/O
25 LX MUTE O
26 LX REQ S O
27 ROM SCL I/O
28 ROM SDA O
29 MCU RXD O
30 MCU TXD O
31 MCU CLK O
32 SCIF0 RTS I
33 SCIF0 RXD O
34 SCIF0 TXD I
35 NC -
36 SCIF0 CTS O
37 NC I
38 NC -
39 NC I
40 NC -
41 NC I
42 RD O
43 NC -
44 WR O
45 NC O
46 DISP SEL I
47 A18 O
48 CS O
49 A17 O
50 NC -
51~59 A16~A8 O
60 VCC2 -
61 A7 O
62 VSS -
63~69 A6~A0 O
70 NC -
71~86 D15~D0 I/O
87 FLASH RST O
88 FLASH RY I
89~93 NC -
94 AVSS -
95 NC -
96 VREF -
97 AVCC -
98,99 NC -
100 ROM WR I
Application
Mute request to master unit
Communication request to master unit
E2PROM clock for ROM correction
E2PROM data for ROM correction
Not used (Terminal for flash ROM writing)
Not used (Terminal for flash ROM writing)
Not used (Terminal for flash ROM writing)
Bluetooth module transmission control input
Bluetooth module data output
Bluetooth module data input
Not used
Bluetooth module transmission control output
Not used
Not used
Not used
Not used
Not used
External memory reading permission
Not used
External memory writing permission
Not used
Switch for 2006's models with 14-SEG display
External bus address
Flash ROM chip enable
External bus address
Not used
External bus address
Power supply input
External bus address
Power supply input
External bus address
Not used
External bus data
Flash ROM reset
Flash ROM ready input
Not used
Analog power supply input
Not used
Reference voltage input
Analog power supply input
Not used
ROM correction writing mode input
KCA-BT100
Processing / Operation / Description
L: Mute ON, H: Mute OFF
Pull-down (GND)
Pull-up (B.U.)
Pull-up (B.U.)
L fixed
L fixed
L fixed
L fixed
Pull-up (B.U.)
Pull-up (B.U.)
Pull-up (B.U.)
L: Reading
L: Writing
Pull-up (B.U.)
L: 2006's models with 14-SEG display
H: Others condition (Default)
Address output
L: Selected
Address output
Open
Address output
Connects to B.U.5V
Address output
Connects to GND
Address output
Open
Data input/output
L: Reset
L: Busy (During writing)
L fixed
Connects to GND
L fixed
Connects to GND
Connects to B.U.5V
L fixed
L: ROM correction writing mode
5