參數(shù)資料
型號: UPD98404
廠商: NEC Corp.
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù): 4/36頁
文件大?。?/td> 201K
代理商: UPD98404
D
4
μ
P
B
C
&
&
Serial to
parallel
Parallel to
serial
Frame
synchro-
nization
(A1, A2)
Pointer processor
Descrambler
Cell
synchronization
HEC verification
HEC correction
+
Scrambler
+
Cell
scrambler
Cell
descrambler
HEC
generator
Rx FIFO,
7 cells
Tx FIFO,
7 cells
A
BIP generator
(transmit side)
Transmission overhead
processor
(A1, A2, K2, Z2,
G1, H1, H2, H3)
Reception overhead
processor
(K2, Z2, G1, H1, H2, H3)
Transmission
overhead registers
(J0, Z0, C2, K2,etc.)
BIP generator
(receive side)
Transmission
timing generator
OAM controller
(performance register, etc.)
Reception
overhead registers
(J0, Z0, C2, K2, etc.)
Interrupt source
register
Mode register
U
C
M
P
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