Evaluation Kit for CMX990
EV9900A
CONNECTOR PINOUT for J13
Connector
Pin No.
Signal
Name
Signal
Type
Description
1
2
GNDD
GNDD
POWER
POWER
I/P
Connection to digital ground.
Connection to digital ground.
CMX990 Address (A5).
CMX990 Address (A4).
CMX990 Address (A3).
CMX990 Address (A2).
CMX990 Address (A1).
CMX990 Address (A0).
Connection to digital ground.
Connection to digital ground.
CMX990 read strobe.
3
ADDRESS5
ADDRESS4
ADDRESS3
ADDRESS2
ADDRESS1
ADDRESS0
GNDD
4
I/P
5
I/P
6
I/P
7
I/P
8
I/P
9
POWER
POWER
I/P
10
11
12
13
14
GNDD
READN
WRITE
I/P
CMX990 write strobe.
CSN
I/P
CMX990 chip select input.
IRQN
O/P
CMX990 open-drain Interrupt output.
10k pull-up resistor to 3.3V (R193) fitted on
PCB.
15
16
17
18
19
20
21
22
23
24
25
26
27
GNDD
GNDD
DATA7
DATA6
DATA5
DATA4
DATA3
DATA2
DATA1
DATA0
GNDD
GNDD
TX_ON
POWER
POWER
BI
Connection to digital ground.
Connection to digital ground.
CMX990 Data (D7).
BI
CMX990 Data (D6).
BI
CMX990 Data (D5).
BI
CMX990 Data (D4).
BI
CMX990 Data (D3).
BI
CMX990 Data (D2).
BI
CMX990 Data (D1).
BI
CMX990 Data (D0).
POWER
POWER
I/P
Connection to digital ground.
Connection to digital ground.
TX Enable for PIN switch, high = TX, low =
RX (default configuration does not use this
signal).
28
~
~
~
~
~
~
~
~
~
~
~
~
~
~
Spare pin. Leave unconnected.
Spare pin. Leave unconnected.
Spare pin. Leave unconnected.
Spare pin. Leave unconnected.
Spare pin. Leave unconnected.
Spare pin. Leave unconnected.
Spare pin. Leave unconnected.
29, 30
31, 32
33, 34
35, 36
37, 38
39, 40
Table 2 – Host µController Interface
© 2007 CML Microsystems Plc
10
UM9900A/3
CMLMICRO [ CML MICROCIRCUITS ]
