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MC1451A Datasheet(PDF) 42 Page - List of Unclassifed Manufacturers

Part No. MC1451A
Description  Advanced Step Motor Control Chipset
Download  51 Pages
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Maker  ETC1 [List of Unclassifed Manufacturers]
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MC1451A Datasheet(HTML) 42 Page - List of Unclassifed Manufacturers

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42
RST_INTRPT
Reset interrupting condition events
Data/direction:
1/write
Encoding:
32 (hex)
Axis acted on:
interrupting axis
Available on:
all axes
Double buffered:
no
RST_INTRPT resets (clears) the interrupt condition bits for the axis that
caused a host interrupt by masking the interrupting axis status word
with the specified data word. In addition, the host interrupt signal
(HostIntrpt pin on I/O chip) is de-activated.The data word is encoded as
a field of bits, with each bit representing a possible interrupting
condition. For each status word event bit a 1 value in the specified word
will cause the status bit to remain unchanged, while a 0 will reset the
corresponding event. The bit encoding is as follows:
Bit #
Event
0
Motion complete
1
position wrap-around
2
breakpoint reached
3
position capture received
4
motion error
5
positive limit switch
6
negative limit switch
7
command error
8-15
not used, may be set to 0 or 1
If this command is executed when no interrupt condition is
present, the command will have no effect.
GET_INTRPT_MASK
Get host interrupt mask
Data/direction:
1/read
Encoding:
56 (hex)
Axis acted on:
current axis
Available on:
all axes
Double buffered:
no
GET_INTRPT_MASK returns the interrupt mask set by the
SET_INTRPT_MASK command. The returned value is a bit-encoded
mask, described in the SET_INTRPT_MASK command.
Status/Mode
CLR_STATUS
Clear all event bit conditions
Data/direction:
none
Encoding:
33 (hex)
Axis acted on:
current axis
Available on:
all axes
Double buffered:
no
CLR_STATUS resets (clears) all of the event bit conditions for the axis
(bits 0-7 of the status word). The host interrupt line is not affected by
this command. This command is useful for clearing all event bits during
initialization, or during on-line usage if the interrupt line and associated
commands are not being used. For a detailed description of the status
word event bits, see the GET_STATUS command.
This command does not affect the status of the host interrupt line,
only the status event-bits themselves. To reset the host interrupt
line, a RST_INTRPT command must be sent.
RST_STATUS
Reset specific event bit conditions
Data/direction:
1/write
Encoding:
34 (hex)
Axis acted on:
current axis
Available on:
all axes
Double buffered:
no
RST_STATUS resets (clears) the condition event bits for the current
axis, using a data word mask. The data word is encoded as a field of
bits, with each bit representing a possible condition event. For each
status word event bit a 1 value in the specified data word will cause the
status bit to remain unchanged, while a 0 will reset the corresponding
event. The bit encoding is as follows:
Bit #
Event
0
Motion complete
1
position wrap-around
2
breakpoint reached
3
position capture received
4
motion error
5
positive limit switch
6
negative limit switch
7
command error
8-15
not used, may be set to 0 or 1
GET_STATUS
Get axis status word
Data/direction:
1/read
Encoding:
31 (hex)
Axis acted on:
current axis
Available on:
all axes
Double buffered:
-
GET_STATUS returns the status of the current axis.The bit encoding of
the returned word is as follows:
Bit #
Event
0
motion complete (1 indicates complete)
1
position wrap-around (1 indicates wrap)
2
update breakpoint reached (1 indicates reached)
3
position capture received (1 indicates capture has
occurred)
4
motion error (1 indicates motion error)
5
positive limit switch (1 indicates limit switch trip)
6
negative limit switch (1 indicates limit switch trip)
7
command error (1 indicates command error)
8
motor on/off status (1 indicates on)
9
axis on/off status (1 indicates on)


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