This component resembles a probe that transparently monitors bus traffic.
-+------------------------------------------------------------------------------------+
-| Behaviors |
-|------------------------------------------------------------------------------------|
-|bus traffic|When the downstream accessor is configured, all incoming bus API calls |
-|passthrough|to the upstream bus are passed through verbatim. Without the downstream |
-| |accessor configured, the upstream bus will return bus::unmapped for all |
-| |calls. Still, the sampling and tracing functions are still active. |
-|-----------+------------------------------------------------------------------------|
-|bus traffic|Every now and then (at an interval configured by the sample-interval |
-| sampling|attribute), a transaction is also reported via a collection of output |
-| |pins. In sequence, the following output pins are driven: |
-| | |
-| | * "address" - address parameter |
-| | * "data-high" - top 32 bits of bus data being read/written |
-| | * "data-low" - bottom 32 bits of same |
-| | * "status" - bus::status value returned from downstream |
-| | * "type" - an encoded value identifying the size, endianness, and |
-| | direction of the data transfer. Specifically, in C lingo, |
-| | |
-| | (type & 0x00F): log2 of access size (0/1/2/3 for *_int_1/2/4/8)|
-| | (type & 0x010): 0x10 (little-endian) or 0x00 (big-endian) |
-| | (type & 0x100): 0x100 (read) or 0x00 (write) |
-| | |
-| |This sampling function is disabled if sample-interval is zero. The |
-| |read-only interval-counter attribute indicates the current value of the |
-| |modular transaction counter. |
-|-----------+------------------------------------------------------------------------|
-|bus traffic|If the trace? attribute is set, sampled bus traffic is traced to stdout |
-| tracing|in a compact format. The sampling counter is shared with the traffic |
-| |probing behavior above. |
-| | |
-| |One line per transaction is shown in a format resembling the common gdb |
-| |simulators' --trace-core output: |
-| | |
-| |[LABEL:] MODE:ADDRESS ARROW DATA [LATENCY] [STATUS] where LABEL is an |
-| |optional label identifying the probe component. MODE is an encoding of |
-| |the access type: zzz where le and be represent little- or |
-| |big-endianness, and 1-8 represent the number of bytes transferred. ARROW|
-| |is a redundant encoding of direction: {->,<-} for {read,write} ADDRESS |
-| |and DATA are hex-encoded host-endian values, LATENCY is a string |
-| |encoding of the bus access latency, though 0 is ommited STATUS is a |
-| |string encoding of the bus::status, though ok is omitted Examples: |
-| | |
-| | write-be-2:0xa002001c <- 0x3442 |
-| | read-le-8:0x807fff30 -> 0xffffffff807fff68 l:10 |
-| | write-be-4:0xfeedface <- 0xdeadbeef unmapped! |
-+------------------------------------------------------------------------------------+
++--------------------------------------------------------------------------------------+
+| Behaviors |
+|--------------------------------------------------------------------------------------|
+|bus traffic|When the downstream accessor is configured, all incoming bus API calls to |
+|passthrough|the upstream bus are passed through verbatim. Without the downstream |
+| |accessor configured, the upstream bus will return bus::unmapped for all |
+| |calls. Still, the sampling and tracing functions are still active. |
+|-----------+--------------------------------------------------------------------------|
+|bus traffic|Every now and then (at an interval configured by the sample-interval |
+| sampling|attribute), a transaction is also reported via a collection of output |
+| |pins. In sequence, the following output pins are driven: |
+| | |
+| | * "address" - address parameter added to the value of the base-address |
+| | attribute |
+| | * "data-high" - top 32 bits of bus data being read/written |
+| | * "data-low" - bottom 32 bits of same |
+| | * "status" - bus::status value returned from downstream |
+| | * "type" - an encoded value identifying the size, endianness, and |
+| | direction of the data transfer. Specifically, in C lingo, |
+| | |
+| | (type & 0x00F): log2 of access size (0/1/2/3 for *_int_1/2/4/8) |
+| | (type & 0x010): 0x10 (little-endian) or 0x00 (big-endian) |
+| | (type & 0x100): 0x100 (read) or 0x00 (write) |
+| | |
+| |This sampling function is disabled if sample-interval is zero. The |
+| |read-only interval-counter attribute indicates the current value of the |
+| |modular transaction counter. |
+|-----------+--------------------------------------------------------------------------|
+|bus traffic|If the trace? attribute is set, sampled bus traffic is traced to stdout in|
+| tracing|a compact format. The sampling counter is shared with the traffic probing |
+| |behavior above. |
+| | |
+| |One line per transaction is shown in a format resembling the common gdb |
+| |simulators' --trace-core output: |
+| | |
+| |[LABEL:] MODE:ADDRESS ARROW DATA [LATENCY] [STATUS] where LABEL is an |
+| |optional label identifying the probe component. MODE is an encoding of the|
+| |access type: zzz where le and be represent little- or big-endianness, and |
+| |1-8 represent the number of bytes transferred. ARROW is a redundant |
+| |encoding of direction: {->,<-} for {read,write} ADDRESS and DATA are |
+| |hex-encoded host-endian values, LATENCY is a string encoding of the bus |
+| |access latency, though 0 is ommited STATUS is a string encoding of the |
+| |bus::status, though ok is omitted Examples: |
+| | |
+| | write-be-2:0xa002001c <- 0x3442 |
+| | read-le-8:0x807fff30 -> 0xffffffff807fff68 l:10 |
+| | write-be-4:0xfeedface <- 0xdeadbeef unmapped! |
++--------------------------------------------------------------------------------------+
+-------------------------------------------------+
| SID Conventions |
| | | | sampling |
+-------------------------------------------------+
- +---------------------------------------------------+
- | buses |
- |---------------------------------------------------|
- | name | addresses | accesses | behaviors |
- |--------+------------+------------+----------------|
- |upstream|unrestricted|unrestricted|bus traffic |
- | | | |passthrough/etc.|
- +---------------------------------------------------+
-
- +----------------------------------------------------+
- | attributes |
- |----------------------------------------------------|
- | name |category| legal |default|behaviors||
- | | |values | value | ||
- |----------------+--------+-------+-------+---------||
- | | | | |bus ||
- |trace? |setting |boolean|0 |traffic ||
- | | | | |tracing ||
- |----------------+--------+-------+-------+---------||
- | | | | |bus ||
- |sample-interval |setting |numeric|1 |traffic ||
- | | | | |sampling ||
- |----------------+--------+-------+-------+---------||
- | | | | |bus ||
- |interval-counter|register|numeric|- |traffic ||
- | | | | |sampling ||
- |----------------+--------+-------+-------+---------||
- | | | | |bus ||
- |address |pin |numeric|- |traffic ||
- | | | | |sampling ||
- |----------------+--------+-------+-------+---------||
- | | | | |bus ||
- |data-high |pin |numeric|- |traffic ||
- | | | | |sampling ||
- |----------------+--------+-------+-------+---------||
- | | | | |bus ||
- |data-low |pin |numeric|- |traffic ||
- | | | | |sampling ||
- |----------------+--------+-------+-------+---------||
- | | | | |bus ||
- |status |pin |numeric|- |traffic ||
- | | | | |sampling ||
- |----------------+--------+-------+-------+---------||
- | | | | |bus ||
- |type |pin |numeric|- |traffic ||
- | | | | |sampling ||
- |----------------+--------+-------+-------+---------||
- | | |any | |bus ||
- |label |setting |string |- |traffic ||
- | | | | |sampling ||
- +----------------------------------------------------+
+ +-----------------------------------------------------------+
+ | buses |
+ |-----------------------------------------------------------|
+ | name | addresses | accesses | behaviors |
+ |--------+------------+------------+------------------------|
+ |upstream|unrestricted|unrestricted|bus traffic |
+ | | | |passthrough/etc. |
+ +-----------------------------------------------------------+
+
+ +--------------------------------------------------------------+
+ | attributes |
+ |--------------------------------------------------------------|
+ | name |category| legal |default| behaviors ||
+ | | |values | value | ||
+ |----------------+--------+-------+-------+-------------------||
+ |base-address |setting |numeric|0 |bus traffic tracing||
+ |----------------+--------+-------+-------+-------------------||
+ |trace? |setting |boolean|0 |bus traffic tracing||
+ |----------------+--------+-------+-------+-------------------||
+ |sample-interval |setting |numeric|1 |bus traffic ||
+ | | | | |sampling ||
+ |----------------+--------+-------+-------+-------------------||
+ |interval-counter|register|numeric|- |bus traffic ||
+ | | | | |sampling ||
+ |----------------+--------+-------+-------+-------------------||
+ |address |pin |numeric|- |bus traffic ||
+ | | | | |sampling ||
+ |----------------+--------+-------+-------+-------------------||
+ |data-high |pin |numeric|- |bus traffic ||
+ | | | | |sampling ||
+ |----------------+--------+-------+-------+-------------------||
+ |data-low |pin |numeric|- |bus traffic ||
+ | | | | |sampling ||
+ |----------------+--------+-------+-------+-------------------||
+ |status |pin |numeric|- |bus traffic ||
+ | | | | |sampling ||
+ |----------------+--------+-------+-------+-------------------||
+ |type |pin |numeric|- |bus traffic ||
+ | | | | |sampling ||
+ |----------------+--------+-------+-------+-------------------||
+ |label |setting |any |- |bus traffic ||
+ | | |string | |sampling ||
+ +--------------------------------------------------------------+
+-------------------------------------------------+
| accessors |
Component: hw-glue-sequence (Abstract)
- +-------------------------------------------------+
- | pins |
- |-------------------------------------------------|
- | name |direction|legalvalues| behaviors |
- |-----------+---------+-----------+---------------|
- |input |in |any |data forwarding|
- |-----------+---------+-----------+---------------|
- |output-NNN |out |any |data forwarding|
- +-------------------------------------------------+
-
- +--------------------------------------------------------+
- | attributes |
- |--------------------------------------------------------|
- | name |category | legal |default| behaviors ||
- | | | values | value | ||
- |--------------+---------+--------+-------+-------------||
- |state-snapshot|no |opaque |- |state ||
- | |category |string | |save/restore ||
- |--------------+---------+--------+-------+-------------||
- | |setting, |small | | ||
- |num-outputs |watchable|positive|0 |configuration||
- | | |number | | ||
- |--------------+---------+--------+-------+-------------||
- |input |pin, |- |- |data ||
- | |watchable| | |forwarding ||
- +--------------------------------------------------------+
+ +---------------------------------------------------+
+ | pins |
+ |---------------------------------------------------|
+ | name | direction | legalvalues | behaviors |
+ |------------+-----------+-------------+------------|
+ |input |in |any |data |
+ | | | |forwarding |
+ |------------+-----------+-------------+------------|
+ |output-NNN |out |any |data |
+ | | | |forwarding |
+ +---------------------------------------------------+
+
+ +------------------------------------------------------------------+
+ | attributes |
+ |------------------------------------------------------------------|
+ | name | category | legal values |default| behaviors ||
+ | | | | value | ||
+ |--------------+-----------+--------------+-------+---------------||
+ |state-snapshot|no category|opaque string |- |state ||
+ | | | | |save/restore ||
+ |--------------+-----------+--------------+-------+---------------||
+ |num-outputs |setting, |small positive|0 |configuration ||
+ | |watchable |number | | ||
+ |--------------+-----------+--------------+-------+---------------||
+ |input |pin, |- |- |data forwarding||
+ | |watchable | | | ||
+ +------------------------------------------------------------------+
Variant: hw-glue-sequence-1
OSDN Git Service
