參數(shù)資料
型號: DS3112N
英文描述: RECT BRIDGE GPP 15A 600V GBJ
中文描述: 坦佩化T3/E3復(fù)用器3.3化T3/E3成幀器和M13/E13/G.747復(fù)用器
文件頁數(shù): 81/135頁
文件大?。?/td> 585K
代理商: DS3112N
DS3112
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8. BERT
8.1 General Description
The BERT block is capable of generating and detecting the following patterns:
§
the pseudorandom patterns 2
7
- 1, 2
11
– 1 , 2
15
- 1 , and QRSS
§
a repetitive pattern from 1 to 32 bits in length
§
alternating (16-bit) words that flip every 1 to 256 words
The BERT receiver has a 32-bit bit counter and a 24-bit error counter. It can generate interrupts on
detecting a bit error, a change in synchronization, or if an overflow occurs in the bit and error counters.
See Section 8.2 for details on status bits and interrupts from the BERT block. To activate the BERT
block, the host must configure the BERT mux via the BERT mux control register (Section 8.2). Data can
be routed to the receive side of the BERT from either the T3/E3 framer or from one of the 28 T1 or 16/21
E1 receive ports. Data from the transmit side of the BERT can be inserted either into the T3/E3 framer or
into one of the 28 T1 or 16/21 E1 transmit ports. See Figures 1A and 1B for a visual description of where
data to and from the BERT can be placed.
8.2 BERT Register Description
Register Name:
BERTMC
Register Description:
BERT Mux Control Register
Register Address:
0x6Eh
Bit #
7
6
5
4
Name
n/a
n/a
n/a
RBPS4
Default
-
-
-
0
Bit #
15
14
13
12
Name
n/a
n/a
n/a
TBPS4
Default
-
-
-
0
Note:
Bits that are underlined are read-only; all other bits are read-write.
3
2
1
0
RBPS3
0
RBPS2
0
RBPS1
0
RBPS0
0
11
10
9
8
TBPS3
0
TBPS2
0
TBPS1
0
TBPS0
0
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