EV9900A Datasheet, PDF (10/27 Pages) CML Microcircuits – Test Access for Important Signals

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