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