PM8621-BI PMC-Sierra, Inc., PM8621-BI Datasheet - Page 126

• Manufacturer Part Number: PM8621-BI
• Description: Driver, NSE/SBS Narrowband Chipset Driver
• Manufacturer: PMC-Sierra, Inc.

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2021248, Issue 1
Mapping the time slot: nbcsStswMapSlot
Establish connections in the space or time switch by writing settings directly to the offline
connection page into the hardware device. This mapping function can operate in multiple modes,
namely unicast (NBCS_STSW_UNICAST), map (NBCS_STSW_MAP), inport
(NBCS_STSW_INPORT), outport (NBCS_STSW_OUTPORT), time_inport
(NBCS_STSW_TIME_INPORT) and time_outport (NBCS_STSW_TIME_OUTPORT) as
controlled by the parameter
while the latter four modes are applicable to NSE devices only.
For space switches (in NSE devices) operating in unicast mode, the connection between the first
element pointed to by
time instance indicated by the first element in
times for all the pairs. It is designed to set up multiple unicast connections in the switch.
For space switches (in NSE devices) operating in map mode which is to update the entire
connection map,
column mode and SBI DS0/CAS modes, respectively, where n the number of ports in the device.
The order in the array (pointed to by
inport1[0]…inport1[M]…inportN[0]…inportN[M] where M = frame size - 1 and is 1079 in
TeleCombus/SBI column or 9719 in SBI DS0/CAS mode and N = total number of ports - 1, i.e.,
11 for NSE-8G or 31 for NSE-20G. The parameters
numSlots
Specific to the NSE devices, the time_inport (NBCS_STSW_TIME_INPORT) mode allows user
to configure all the outports (
the outports for all timeslots source data from the fixed inport (
pOutSlot
be either 1080 (in TeleCombus/SBI column modes) or 9720 (in SBI DS0/CAS modes). The inport
(NBCS_STSW_INPORT) mode operates in a similar fashion. The difference is that the parameter
numSlots
For time_outport (NBCS_STSW_TIME_OUTPORT) mode, it is very similar to the time_inport
mode except that a fixed outport (
elements in the
in this mode. Similar to the time_outport mode, the outport mode (NBCS_STSW_OUTPORT)
requires the user to provide
mapped.
For time switches (in SBS devices) operating in unicast mode, the user supplies an array of
incoming bytes/columns and an array of the corresponding outgoing bytes/columns. One to one
mapping is assumed for the
pOutSlot[0]
For time switches (in SBS devices) operating in map mode, the user supplies the
with 1080 and 9720 elements in column and byte switching mode respectively. The
array is ignored.
, and
are all ignored in this mode.
is specified by the user to indicate the exact number of timeslots to be mapped.
,
pInport
pInSlot[1]
numSlots
pInport
pInport
array in all timeslots.
is expected to have 1080n or 9720n elements in TeleCombus/SBI
are ignored in this mode. The total number of timeslots is expected to
numSlots
pInSlot
mode
pOutport
mapped to
is mapped to the first element indicated by
. The first two modes apply to both the SBS and NSE devices
pOutport
pInport
array and the
, which specifies the total number of timeslots to be
[]) for all timeslots with a fixed inport. In other words, all
pOutSlot[1]
[0]) is given and the mapping is between the
pTimeSlot
) should be as follows: inport0[0]…inport0[M]
pInSlot
pOutSlot
pInSlot
Narrowband Chipset Device Driver Manual
,
and so on.
. Such operation repeats
pOutSlot
,
pOutSlot, pOutport
pInport
array i.e.
Application Programming Interface
, and
[0]).
pInSlot[0]
numSlots
pOutport
pInSlot
pInSlot
numSlots
pOutSlot
are ignored
mapped to
for the
,
and
array
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