Single I/O Access

Single I/O Access is the tool to read/write one port at a time.  There are two group boxes in the view.  Left one is Direct I/O access.  Right one is Index I/O access.

Note:  All Data are in hex format.

Direct I/O Access

Port Data Length

To select data length to read or write.

I/O Port

To enter I/O Port address.

Port Data

In read operation, data value is displayed.  In write operation, enter data value.

Read Button

Click the button to read I/O port.

Write Button

Click the button to write to I/O port.

Direct I/O Access history

Displays history list of all read and write direct I/O accesses in the same session.

Index I/O Access

Port Data Length

To select data length to read or write.

Index Port

To enter index I/O Port address.

Data Port

To enter data I/O Port address.

Offset

To enter offset (index) to access.

Data

In read operation, data value is displayed.  In write operation, enter data value.

Read Button

Click the button to read I/O port.

Write Button

Click the button to write to I/O port.

Index I/O Access History

Displays history list of all index read and write I/O accesses in the same session.