FEB-9455 User’s Manual
53
Value of
Inversion Register:
Only lower nibble is available for this function.
When set to a ‘1’, the incoming/outgoing port value is inverted.
When set to a ‘0’, the incoming/outgoing port value is the same as in Data Register.
Value of
I/O Selection Register:
Only lower nibble is available for this function.
When set to a ‘1’, respective GPIO port is programmed as an input port.
When set to a ‘0’, respective GPIO port is programmed as an output port.
Value of
Output Data / Input Data:
Only lower nibble is available for this function.
If a port is assigned to be an output port, then its respective bit can be read/write.
If a port is assigned to be an input port, then its respective bit can be read only.
Note:
Some other functions may occupy the high nibble of the registers. Altering any
content in high nibble will be undesired.
Summary of Contents for FEB-9455
Page 1: ...FEB 9455 Intel 945GME 5 25 ESB User s Manual Rev 01 Aug 2009...
Page 44: ...FEB 9455 User s Manual 44 Step 4 Click Next to continue Step 5 Click Finish to complete setup...
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Page 47: ...FEB 9455 User s Manual 47 Step 5 Click Finish to complete setup...
Page 49: ...FEB 9455 User s Manual 49 Step 3 Click Finish to complete setup...
