參數(shù)資料
型號(hào): T8100A
英文描述: H.100/H.110 Interface and Time-Slot Interchangers
中文描述: H.100/H.110接口和時(shí)隙Interchangers
文件頁(yè)數(shù): 35/112頁(yè)
文件大?。?/td> 1408K
代理商: T8100A
Lucent Technologies Inc.
31
Advance Data Sheet
November 1999
H.100/H.110 Interfaces and Time-Slot Interchangers
Ambassador T8100A, T8102, and T8105
2 Architecture and Functional Description
(continued)
2.3 H-Bus Section
(continued)
2.3.1 Memory Architecture
(continued)
5-6108F
Figure 9. CAM Architecture
The maximum number of connections is set by the number of locations in the data SRAM and the CAMs. In this
implementation, 512 simplex (T8102, T8105 only) connections are permitted. Since one connection requires two
CAM entries pointing to a common data location, the maximum number of connections could be reduced to 256
simplex if all connection entries reside within only one CAM. The maximum number of connections is increased
above 512 simplex if the connection type is broadcast, i.e., from one to many.
CAM-E
CE-SRAM
11
1
A
A
…………………
0
255
7
0
T
T
………………
ADDRESS
TAG
H-BUS:
A0 = 0
CAM-O
CO-SRAM
11
1
A
A
…………………
0
255
7
0
T
T
………………
ADDRESS
TAG
H-BUS:
A12 = 0
A0 = 1
CAM-L
CL-SRAM
10
0
A
A
…………………
0
255
7
0
T
T
………………
ADDRESS
TAG
A12:A11 = 11
READ/WRITE
VALID ENTRY MARKER
PATTERN/NORMAL
DATA SRAM SELECT
7
0
D
D
………………
7
0
D
D
………………
DATA BUFFER 0 DATA BUFFER 1
0
255
DATA SRAM
READ/WRITE AND
SRAM SELECT
H-BUS
LOCAL I/O
PATTERN MODE
OUTPUTS TAG
TO H-BUS
PATTERN MODE
OUTPUTS TAG
TO LOCAL OUT
THIS IS THE H-BUS CONNECTION MEMORY:
3 CAMS, MAXIMUM OF 48 ACCESSES PER 976 ns
TIME SLOT, REQUIRES <20 ns/ACCESS
THIS IS THE H-BUS DATA MEMORY:
EFFECTIVE ACCESS TIME < 10 ns
EVEN STA12 = 0
ODD STR1 = 01
LOCAL 0—15
相關(guān)PDF資料
PDF描述
T8102A H.100/H.110 Interface and Time-Slot Interchangers
T8105A H.100/H.110 Interface and Time-Slot Interchangers
T8100 H.100/H.110 Interface and Time-Slot Interchanger
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