P3, National Instruments Interface - Spectrum Digital TMS320VC5509A EVM PLUS Technical Reference

Spectrum Digital, Inc

3.3.3 P3, National Instruments Interface

The VC5509A EVM PLUS provides a direct connection to the National Instruments
series of instrumentation products.
Only a limited selection of the available inputs and outputs are used by the EVM at this
time. Some of the spare signals are routed to the test headers for prototyping use.
Note that it is important to realize that the voltages for the National Instruments
products and the EVM products often require level translation. Do not connect signals
to this interface prior to familiarizing yourself with these requirements. The table below
shows the signals on this interface.
Pin # Signal Name
1 FREQ_OUT
2 GPCTR0_OUT
3 PFI9/GPCTR0_GATE
4 DGND
5 PFI6/WFTRIG
6 PFI5/UPDATE
7 DGND
8 +5 v
9 DGND
10 PFI1/TRIG2
11 PFI0/TRIG1
12 DGND
13 DGND
14 +5 V
15 DGND
16 DIO6
17 DIO1
18 DGND
19 DIO4
20 EXTREF
21 DAC1OUT
22 DAC0OUT
23 ACH15
24 AIGND
25 ACH6
26 ACH13
27 AIGND
28 ACH4
29 AIGND
30 ACH3
31 ACH10
32 AIGND
33 ACH1
34 ACG8
3-6
Table 4: P3, National Instruments Interface
EVM
I/O/Z
Function
TMS320VC5509A EVM PLUS Technical Reference
Pin # Signal Name
35 DGND
36 DGND
37 PFI8/GPCTR0_SOURCE
38 PFI7/STARTSCAN
39 DGND
40 GPCTR1_OUT
41 PFI4/GPCTR1_GATE
42 PFI3/GPCTR1_SOURCE
43 PFI2/CONVERT
44 DGND
45 EXTSTROBE
46 SCANCLK
47 DIO3
48 DIO7
49 DIO2
50 DGND
51 DIO5
52 DIO0
53 DGND
54 AOGND
55 AOGND
56 AIGND
57 ACH7
58 ACH14
59 AIGND
60 ACH5
61 ACH12
62 AISENSE
63 ACH11
64 AIGND
65 ACH2
66 ACH9
67 AIGND
68 ACH0
EVM
I/O/Z
Function