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PT2000 Datasheet(PDF) 55 Page - NXP Semiconductors

Part # PT2000
Description  Programmable solenoid controller
PDF  148 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PT2000 Datasheet(HTML) 55 Page - NXP Semiconductors

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NXP Semiconductors
PT2000
The multiplexer must not be switched to a signal currently processing via another OAx analog output or an internal path. Switching the
multiplexer can cause a glitch on the signal being processed.
6.8.2
OA_2 Pin digital I/O function
6.8.2.1
General requirements
The OA_2 pin can also be used as a digital flag bus input or output flag (14). It can be selected by the SPI configuration of the PT2000
using the registers flags_source and flags_direction (refer to Table 138, Flag_direction (1A1h)). The flag pin (14) has a higher rise/fall time
of about 3.0
μs, compared to the other external flag bus pins of the device. For the digital output functionality, the same output stage is
used as with the analog function. As soon as the pin is configured as a digital input, the buffer is switched to hi-impedance. Table 36 shows
how the enable signal is created.
Table 33. OA_1 multiplexer logic table
OaSel1(2:0)
OaEN1
Signal at Output OA_1
000
1
OA_Cur 1 (Feedback of current measurement 1)
001
1
OA_Cur 3 (Feedback of current measurement 3)
010-100
1
Reserved
101
1
VCC2P5
110-111
1
Reserved
xxx
0
HiZ
Table 34. OA_2 multiplexer truth table
OaSel2(2:0)
OaEN2
Signal at Output OA_2
000
1
OA_Cur 2 (Feedback of current measurement 2)
001
1
OA_Cur 4 (Feedback of current measurement 4)
010-100
1
Reserved
101
1
VCC2P5
110-111
1
Reserved
xxx
0
HiZ
Table 35. OA_3 multiplexer truth table
OaSel3(2:0)
OaEN3
Signal at Output OA_3
000
1
OA_Cur 5 (Feedback of current measurement 5)
001
1
OA_Cur 6 (Feedback of current measurement 6)
010-100
1
Reserved
101
1
VCC2P5
110-111
1
Reserved
xxx
0
HiZ



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