Datasheet

www.ti.com Theory of Operation for Multi-Cal-Slave EVM Hardware
2.3 Signal Definitions
Table 1 and Table 2 summarize the signals on J0 and J1, respectively.
Table 1. J0: Signal Connection Summary
Pin J0 Signal Function on J0
1 Chassis ground Chassis ground
2 One0 One-wire digital communication line.
3 Pos0 Positive device supply.
4 Neg0 Negative device supply.
5 GND0 Ground force for current modules.
Ground sense for voltage modules.
6 V
OUT
0 Output voltage measurement.
7 SCK0 SPI SCK for XTR108.
8 CS0 SPI CS0 for XTR108
9 IO0 SPI Input / Output for XTR108
10 Chassis ground Pins 10 to 18 repeat the function of pins 1 to 9 for
channel 2
11 One1
12 Pos1
13 Neg1
14 GND1
15 V
OUT
1
16 SCK1
17 CS1
18 IO1
19 — No connection
20 Chassis ground Pins 20 to 28 repeat the function of pins 1 to 9 for
channel 3
21 One2
22 Pos2
23 Neg2
24 GND2
25 V
OUT
2
26 SCK2
27 CS2
28 IO2
29 Chassis ground Pins 29 to 37 repeat the function of pins 1 to 9 for
channel 4
30 One3
31 Pos3
32 Neg3
33 GND3
34 V
OUT
3
35 SCK3
36 CS3
37 IO3
7
SBOU094–September 2010 Multi-Cal-Slave Evaluation Module
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