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參數(shù)資料
| 型號(hào)： | MESC-PM2 |
| 廠商： | Lineage Power |
| 英文描述： | Enhanced Services Controller， Performance Monitor - 32 Connections(可執(zhí)行檢測(cè)32個(gè)連接的增強(qiáng)型服務(wù)控制器) |
| 中文描述： | 增強(qiáng)服務(wù)控制器，性能監(jiān)視器- 32連接（可執(zhí)行檢測(cè)32個(gè)連接的增強(qiáng)型服務(wù)控制器） |
| 文件頁(yè)數(shù)： | 5/15頁(yè) |
| 文件大?。?/td> | 503K |
| 代理商： | MESC-PM2 |
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April 2000
MESC_PM2
MACRO
Data Sheet
Logic Design Solutions
5/14
1.5
E.S.I. interface
The MESC_PM2 is only connected to the E.S.I. 16-bits output data bus. The ESSYNC signals is also used to synchronise the
frame received from the APC.
All the FPGA is synchronised on the APC ESCLK signals.
The ESI output is a repeating frame of length 34 cycles, which corresponds exactly to an APC internal timeslot. In each
timeslot the APC can perform the enqueue of a single cell from the Utopia interface on Ingress. The MESC_PM2 will
monitor events associated with this operation.
If the ESSYNC pulse is missing the associated cell will not be processed.
The fields which will be extracted, as a subset of the complete ESI frame, to support the statistics given earlier, are listed
below. IE_ relates to Ingress Enqueue events. The position of each field within the frame is also given. Cycles within the ESI
frame are numbered 0 to 33, with the high pulse on ESSYNC marking the position of Word 0.
Field
Word
7
Bits
15:0
IE_VCX[15:0]
This is the unique identifier for each enabled connection. A VCX of 0xFFFF is a NULL VCX, ie. no enqueue or dequeue
event took place.
Field
IE_S
Word
4
Bits
5
This is the VP Switch flag. When S = 0 the connection is VC switched. When S = 1 the connection is VP switched. Only F5
level PM statistics can be maintained for VC switched connections. Only F4 level PM statistics can be maintained for VP
switched connections.
Field
Word
4
4
Bits
15:13
12:10
IE_VPCT[2:0]
IE_VCCT[2:0]
This is the VP or VC cell type. Only user cells will be counted, ie. VPCT = 001 when S = 1, or VCCT = 001 when S = 0.
Field
Word
24
24
Bits
15:12
11:8
IE_OpCode[3:0]
IE_ErrCode[3:0]
This is the Ingress Enqueue Operation Code and Error Code. IE_OpCode = 0000 indicates a regular operation. IE_ErrCode =
0000 indicates a valid cell on a valid connection.
Field
Word
12
12
13
Bits
14:8
7:0
15:0
PM_PMX[6:0]
PM_BLER01[7:0]
PM_TUCD01[15:0]
These are the Performance Monitoring results. The PM_PMX is the index to one of 127 PM tasks within the APC. The
PM_BLER01 is the Block Error Result for the CLP0+1 cell stream. The PM_TUCD01 is the Total User Cell Difference for
the CLP0+1 cell stream.
Please refer to APC version 3 data sheet to get more detail.
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