Advantech MIO-2262 User Manual page 55

an output, give the "Value" text box with 01XXXX01, where X is for don't care
Please simply assign a 0 for don't care pins, e.g. 10000001.
Multiple Pin Operation – "IO Read"
- For example, if you want to read the status of GPIO pins 0, 1, 6 and 7, give the
"Multiple Pin" text box the value 11000011. Bit 0 stands for GPIO 0, bit 1 stands
for GPIO 1, and so on. Again, if the pin is in status high, the value in the relevant
bit of the "Value" text box will be 1. If the pin status is low, the "Value" text box
will be 0.
Note! 1. "IO Write" can only be performed on pins in the output direction.
2. "Set Direction" can only be performed on bidirectional pins.
3. "IO Read" can get the status of both input and output pins.
Please get the information first in the "MASK" field.
IV. SMBus
Protocols
- Choose one of the protocol operations by selecting a radio button.
- Give the proper value to the "Slave address" and "Register offset" text boxes.
Some protocol operations don't have register offsets. Slave addresses must be
converted from 7-bit to 8-bit (e.g. if datasheet says device has 7-bit address
0x20, then you have to type in 0x40)
- Click the "Read" button for read/receive operations, and the "Write" button for
write/send operations. Slave addresses must be converted from 7-bit to 8-bit
(e.g. if datasheet says device has 7-bit address 0x20, then you have to type in
0x40)
- The values read or to be written are in the "Result (Hex)" text box.
45 MIO-2262 User Manual