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Echelon I/O Model Reference for Smart Transceivers and Neuron Chips User Manual

Page 55

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I/O Model Reference

45

Figure 17. Touch I/O for Series 3100 Devices and Timing

Table 18. Touch I/O Latency Values for Series 3100 Devices

Symbol Description

Minimum

Typical

Maximum

t

rsto

Reset call to data line low

60.0 μs —

t

rstl

Reset

pulse

width

500

μs —

t

pdh

Reset pulse release to data line high
10 MHz

5 MHz


4.8 μs

9.6 μs

275 μs

275 μs

t

pdl

Presence pulse width

120.0 μs —

t

wh

Data line high detect to presence pulse

80 μs —

t

rret

Return from reset function

12.6 μs —

t

f

I/O call to data line low (start of bit slot)

125.4 μs —

t

low

Start

pulse

width

10 MHz

5 MHz

4.2 μs

8.4 μs

t

rdi

Start pulse edge to sampling of input (read

operation)
10 MHz

5 MHz


15.0 μs

18.0 μs