Pike
Technical
Manual
V5.2.3
315
Configuration of the camera
Configuration
of
the
camera
Example
For
isochronous
packets
at
a
speed
of
S800
the
maximum
allowed
packet
size
(IIDC
V1.31)
is
8192
byte.
This
feature
allows
you
to
extend
the
size
of
an
isochronous
packet
up
to
11.000
byte
at
S800.
Thus
the
isochronous
bandwidth
is
increased
from
64
MByte/s
to
approximately
84
MByte/s.
You
need
either
PCI
Express.
The
Maximum ISO packet size
feature
...
•
...
reduces
the
asynchronous
bandwidth
available
for
controlling
cameras
by
approximately
75%
•
...
may
lead
to
slower
responses
on
commands
•
...
is
not
covered
by
the
IEEE1394
specification
•
...
may
not
work
with
all
available
IEEE1394
host
adapters.
Restrictions
Note
the
restrictions
in
the
following
table.
When
using
software
with
an
Isochronous
Resource
Manager
(IRM):
deactivate
it.
Register
Name
Field
Bit
Description
0xF1000560
ISOSIZE_S400
Presence_Inq
[0]
Indicates
presence
of
this
feature
(read
only)
---
[1
to
5]
Reserved
ON_OFF
[6]
Enable/Disable
S400
settings
Set2Max
[7]
Set
to
maximum
supported
packet
size
---
[8
to
15]
Reserved
MaxIsoSize
[16
to
31]
Maximum
ISO
packet
size
for
S400
0xF1000564
ISOSIZE_S800
Presence_Inq
[0]
Indicates
presence
of
this
feature
(read
only)
---
[1
to
5]
Reserved
ON_OFF
[6]
Enable/Disable
S800
settings
Set2Max
[7]
Set
to
maximum
supported
packet
size
---
[8
to
15]
Reserved
MaxIsoSize
[16
to
31]
Maximum
ISO
packet
size
for
S800
Table 179: Advanced register: Maximum ISO packet size
Note
We
strongly
recommend
to
use
PCI Express
adapter.