Appendix A: Command Reference
xPico® Wi-Fi® Embedded Device Server User Guide
84
configitem Target Speed
value
Target Speed
selects the target clock speed of the SPI.
The
Target Speed
may be lowered to the closest
Operating Speed
capability of the device. If so, a
warning will be noted.
0
or clearing the selection selects the minimum speed.
Target Speed
has units of Hz.
Blank the value for "<Minimum>".
configitem Idle Clock Level
value
Idle Clock Level
, also known as Clock Polarity or CPOL, selects the level of the clock when idle:
Low
means the idle clock is at a low level. This is equivalent to CPOL=0.
High
means the idle clock is at a high level. This is equivalent to CPOL=1.
Idle Clock Level
may be "Low" or "High".
configitem Clock Edge
value
Clock Edge
, also known as Clock Phase or CPHA, selects the clock edge for latching data:
First
means each bit is latched on the first edge of the clock. This is equivalent to CPHA=0. When
Idle
Clock Level
is
Low
, data is latched on the rising edge. When
Idle Clock Level
is
High
, data is latched on
the falling edge.
Second
means each bit is latched on the second edge of the clock. This is equivalent to CPHA=1. When
Idle Clock Level
is
Low
, data is latched on the falling edge. When
Idle Clock Level
is
High
, data is
latched on the rising edge.
Clock Edge
may be "First" or "Second".
configitem Bits Per Word
value
Bits Per Word
selects the number of bits per word of transfer.
Bits Per Word
may be "8" or "16".
configitem First Transfer
value
First Transfer
selects the first transfer bit of each word.
First Transfer
may be "Most Significant Bit" or "Least Significant Bit".
configgroup Users
These settings pertain to
Users
on the device.
