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參數(shù)資料
| 型號(hào)： | PM7323-SI |
| 廠商： | PMC-SIERRA INC |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | ROUTING CONTROL, MONITORING, & POLICING 200 MBPS |
| 中文描述： | ATM SWITCHING CIRCUIT, PQFP240 |
| 封裝： | 32 X 32 MM, 3.40 MM HEIGHT, 0.50 MM PITCH, HEAT SINK, PLASTIC, QFP-240 |
| 文件頁(yè)數(shù)： | 55/219頁(yè) |
| 文件大小： | 695K |
| 代理商： | PM7323-SI |
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STANDARD PRODUCT
PM7323 RCMP-200
DATASHEET
PMC-960543
ISSUE 2
ROUTING CONTROL, MONITORING, & POLICING
200 MBPS
Proprietary and Confidential to PMC-Sierra, Inc.
and for its Customer’s Internal Use.
44
Table 8
-
Bit
Name
Definition
3
AIS
This bit becomes a logic 1 upon the receipt of a single
AIS cell. The alarm status is cleared upon the receipt of
a single user cell or continuity check cell or if no AIS cell
has been received within the last 3.5 +/- 0.5 sec
(default) or 2.5 +/- 0.5 sec. The threshold is set by the
AISRDIThresh bit of the Performance Monitoring
Configuration 1 register (0x19).
2
RDI
This bit becomes a logic 1 upon the receipt of a single
RDI cell. The bit is cleared if no RDI cell has been
received within the 3.5 +/- 0.5 sec (default) or 2.5 +/- 0.5
sec. . The threshold is set by the AISRDIThresh bit of
the Performance Monitoring Configuration 1 register
(0x19).
1
CC_alarm
This bit is a logic 1 if no user, AIS or continuity check
cells have been received in the latest 5.5 +/- 0.5 sec
(default) or 3.5 +/- 0.5 sec seconds. The threshold is set
by the CCThresh bit of the Performance Monitoring
Configuration 1 register (0x19).
0
POLICE
This bit is a logic 1 if at least one cell has violated the
traffic contract. This bit is not cleared upon a read; it
must be cleared explicitly by writing to its location.
The Extended Status and Reserved fields of the VC Table word at
SA[19:16]=0111 contain connection state information. The Reserved field should
be initialized to all zeros and the Extended Status field should be set to 0x050
during connection provisioning.
9.3.2 Header Translation
Any appended octets (used by non-standard PHY devices or in special
applications) in incoming cells are removed after they have been used for VC
identification. Once VC identification has been made, new octets contained in
the VC table can be appended to each cell.
The new appended octets are contained in locations identified by
SA[19:16]=0011, 1001 and 1010. Substitution of appended octets can be
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