EV6240 Datasheet, PDF (7/47 Pages) CML Microcircuits – Opto-Isolated serial interface capability

Evaluation Kit for CMX624/CMX644A
CONNECTOR PINOUT
Connector Connector
Ref.
Pin No.
Signal
Name
J7
1
V_DD
2
BERT 4
3
RESET
4
BERT 3
5
V_PP
6
BERT 2
7
V_{DD ADJ}
8
BERT 1
9
V_SS
10
-
J8
1
VIS+
2
VIS-
EV6240
Signal
Type
Power
Output
Input
Output
Input
Output
-
Input
Power
-
Power
Power
Description
V_DD connection.
BERT RX DATA clock
PIC16C77 Reset.
BERT RX DATA
V_PP Programming voltage for PIC16C77.
BERT TX DATA clock
V_DD Adjustment connection.
BERT Tx DATA
V_SS connection.
Not used. No connection needed.
+ve power from isolated external power supply.
0V power from isolated external power supply.
Test Point
Ref.
TP1
TP2
TP3
TP4
TP5
TP6
TP7
TP8
TP9
TP10
TP11
TP12
TP13
TP14
TEST POINTS
Default
Measurement
8-24V
0V
5V
-
0V
5V
LO
-
-
HI
HI
-
-
HI
Description
V_IN connection
V_SS connection
V_DD connection (3.3V or 5.0V)
V_PP programming voltage input for PIC16C77
V_SS2 connection
V_DD2 connection (3.3V or 5.0V)
SCLK ‘C-BUS’ Serial clock.
CDATA ‘C-BUS’ Command data.
RDATA ‘C-BUS’ Reply data.
MODEM 1 CMX6X4 IRQN output, pin 7. A pull up resistor R6 is
included on board
MODEM 1 CMX6X4 CSN input, pin 6
MODEM 1 Line Voltage on 2-wire line.
MODEM 1 DTMF input
MODEM 1 Ring Stimulus output
7
© 1999 Consumer Microcircuits Limited
UM6240/3