MCC MIIC-203 Betriebsanweisung PDF herunterladen (Seite 13)

Receptacle Connector

An I

C Interface Cable (White=SCL, Red=+5VDC, Green=SDA, Black=Ground) is

provided to connect to an external I

C Bus. Since there is no standard I

C Bus

connector, you may want to cut off one end of the cable and add a connector

compatible with your target system.

Additional I

C Interface Cables (4 ft., 8 ft., or 16 ft.), and modular connectors are

available from MCC. Clip Lead cables are also available. (see Appendix A)

2.4 Interrupt (/INT) Signal Connector

The Interrupt (/INT) signal is an extra pin found on some I

C devices. The /INT

signal allows a slave-only device to attract the attention of a bus master device by

lowering the /INT signal voltage level.

The iPort/AFM provides an open-drain /INT signal which can be connected to a

corresponding pin on a master or slave device. The /INT signal allows the

iPort/AFM to participate in interrupt signaling between master or slave devices.

An interrupt output (/INT=low) is generated upon receiving an iNterrupt Assert

command from the host computer. The interrupt signal is released (/INT = high)

when the iPort/AFM is addressed as an I

C Bus slave device, or a iNterrupt Release

command is received from the host computer.

Interrupt monitoring is enabled upon receiving an Enable /INT Monitor command

from the host computer. Interrupt monitoring causes the iPort/AFM to monitor the

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MCC MIIC-203 Betriebsanweisung Seite 13