KDC-CX87/CPS87
5
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No.
Pin Name
I/O
Description
Processing Operation
1 - 3
O
Not used(N.C.)
4
AVSS
-
A/D, D/A converter ground connection terminal
5
O
Not used(N.C.)
6
REQH1
O
Communication request output to CH1
"Lo" : Communication requested
7
AVREF1
I
D/A converter reference voltage input
8
DATAC1
I
Data input from CH1
9
DATAH1
O
Data output to CH1
10
HCLK1
I/O Communication clock input/output with CH1
11
DATAH0
I
Data input from H/U
12
DATAC0
O
Data output to H/U
13
HCLK0
I/O Communication clock input/output with H/U
14
REQC0
O
Communication request output to H/U
"Lo" : Communication requested
15
REQH2
O
Communication request output to CH2
"Lo" : Communication requested
16
DATAC2
I
Data input from CH2
17
DATAH2
O
Data output to CH2
18
HCLK2
I/O communication clock input/output with CH2
19
CHCON01
O
Control output to CH1
"Hi" : CH1 operation mode
20
CHCON02
O
Control output to CH2
"Hi" : CH2 operation mode
21
RELAY1
O
Relay1 Control output
"Hi" : AUX inputs, "Lo" : Changer outputs
22
RELAY2
O
Relay2 Control output
"Hi" : CH2 outputs, "Lo" : CH1 outputs
23-32
O
Not used(N.C.)
33
VSS
-
Ground connection terminal
Connected to GND lines.
34-59
O
Not used(N.C.)
60
RESET
I
System reset
"Lo" : System reset
61
REQC2
I
Communication request input from CH2
"Lo" : Communication requested
62
BUDET
I
Momentary power down detection input
"Hi" : When momentary power down detected or BU OFF
"Lo" : BU ON
63
AUX SW
I
AUX SW input
"Hi" : Auxiliary input mode
64
REQH0
I
Communication request input form H/U
"Lo" : Communication requested
65
REQC1
I
Communication request input form CH1
"Lo" : Communication requested
66
CHCON1
I
Changer control mode input from H/U
"Lo" : CH1 mode
67
COMMSW
I
5-line communication old/new switch input
"Hi" : New communication, "Lo" : Old communication
68
VDD
-
Positive power supply connection terminal
Connected to BU 5V lines.
69
X2
-
Main clock resonator connection terminal 2
70
X1
I
Main clock resonator connection terminal 1
71
IC
-
IC Internal connection terminal
Connected to GND lines.
72
O
Not used(N.C.)
73
CHCON2
I
Changer control mode input from H/U
"Lo" : CH2 mode
74
AVDD
-
A/D converter positive power supply connection terminal
Connected to BU 5V lines.
75
AVREF0
I
A/D converter reference voltage input
Connected to BU 5V lines.
76
O
Not used(N.C.)
77
AUX TYPE
O
Not used(pull down to GND lines.)
78-80
O
Not used(N.C.)
●
IC1 (SUB-CIRCUIT UNIT: X13-9930-00)
Summary of Contents for KDC-CPS89
Page 21: ...KDC CX87 CPS87 25 MEMO ...
