ZIOL2201 datasheet(21/92 Pages) RENESAS

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ZIOL2xxx Datasheet

April 26, 2016

supply voltage of 8V. For each input channel an analog and a digital filter are implemented, which can separately

be enabled.

3.2.3.2.

Configuration

The following table gives an overview of the possible configurations for the COM and AUX input channels.

Table 3.3

Receiver configurations

Parameter

Config.-

Reg.-

Addr.

Bit-

Field

Setting / Range

Unit

Remarks

Threshold level for

COM and AUX

COM_CTRL,

AUX_CTRL

0b0:

absolute

0b1:

ratiometric

Absolute = IO-Link

compliant thresholds

Analogue filter

COM_CTRL,

AUX_CTRL

0b0:

disabled

0b1:

enabled

Digital filter

COM_CTRL,

AUX_CTRL

0b0:

disabled

0b1:

enabled

Isink, sink strength

COM_PARAM,

AUX_PARAM

0b0:

2 – 3

0b1:

5 – 7

Sink mode

COM_PARAM,

AUX_PARAM

1:0

0b00:

off

0b01:

IO-Link

0b10:

driver

0b11:

Following driver:

if driver is enabled

then sink = off

if driver is disabled

then sink = on

1) For a summary of all configuration registers, please refer to Table 3.7.

3.2.3.3.

Sink Modes

The IO-Link standard defines a possible configuration option, in which the device drives the signal line only with a

high side driver thus the logic low level will be generated with a current sink on the master side (Figure 3.6). The

ZIOL2xxx supports the current sinks in different modes on master side (for details refer to Table 3.4).

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