Cisco Cisco Explorer Set-top Software Version 2.1 ユーザーガイド
Chapter 2 Network Status Diagnostic Screens for all Explorer DHCTs
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Screen Fields and Values
This section describes the fields and possible values that can appear in this
This section describes the fields and possible values that can appear in this
diagnostic screen.
Receive Statistics
The Receive Statistics section displays the QPSK forward path data statistics for the
The Receive Statistics section displays the QPSK forward path data statistics for the
following data channels that are included within the screen.
CA—the channel containing conditional access data
Broadcast— the channel containing data that is broadcast to multiple DHCTs
DNCS—the channel that the DNCS uses to communicate with the DHCT
DAVIC—the channel used for the DAVIC connection
Pass Thru—the channel on which the DHCT receives one-way pass-through
messages
OOB SI—the channel containing out-of-band (OOB) SI
Field
Name
Description
Possible Values
Ctrl
The value of the "channel" control
register
register
[Bit 0 set]—indicates channel is
enabled (hexadecimal value)
enabled (hexadecimal value)
VPI
The value of the "channel"
asynchronous transfer mode (ATM)
hardware filter
asynchronous transfer mode (ATM)
hardware filter
[Hexadecimal number]
VCI
The value of the "channel" ATM
hardware filter
hardware filter
[Hexadecimal number]
Off
The channel "hardware filter" offset
into the data stream
into the data stream
[Hexadecimal number]
DMA
Note:
Only
appears
on
Explorer
2000
DHCTs.
Only
appears
on
Explorer
2000
DHCTs.
The value of the "channel" direct
memory access (DMA) status
register
memory access (DMA) status
register
A hexadecimal number with bits
defined as follows:
defined as follows:
0x4: READ PEND—PTV stream
read pending flag—PowerTV is
trying to read data from DMA
channel
read pending flag—PowerTV is
trying to read data from DMA
channel
0x2: PKT AVAIL—Hardware data
available flag—DMA layer
indicates the presence of a packet
in the receive buffer
available flag—DMA layer
indicates the presence of a packet
in the receive buffer
0x1: OVERFLOW (or initially,
channel DISABLED)—DMA driver
detected a buffer overflow and has
temporarily stopped the channel
channel DISABLED)—DMA driver
detected a buffer overflow and has
temporarily stopped the channel