參數(shù)資料
型號: IP-ED8B10B
元件分類: 通信、網(wǎng)絡(luò)模塊及開發(fā)工具
英文描述: Telecomm/Datacomm
中文描述: 電信/數(shù)據(jù)通信
文件頁數(shù): 7/11頁
文件大?。?/td> 502K
代理商: IP-ED8B10B
Altera Corporation
7
8b10b Encoder/Decoder MegaCore Function (ED8B10B) Data Sheet
Figure 4. Encoder Timing Diagram
Decoder
Data and identified 10-bit special
K
codes are converted from 10 bits to 8
bits; see
Table 1 on page 3
for a list of the valid
K
codes, and
Figure 1 on
page 2
for an illustration of the conversion process.
When special 10-bit
K
codes are received, the special
K
codes are
translated to 8-bit values, and the
kout
signal is asserted. The decoder
also checks for invalid 10-bit codes, and asserts the
kerr
signal when
invalid codes are detected.
When the
idle_del
signal is asserted, it deletes all 10-bit words
identified as the special IDLE character of K28.5.
When the receiver detects a disparity error, the
rderr
signal is asserted.
Figure 5
shows a block diagram of the decoder.
Figure 5. ED8B10B Decoder
clk
datain,
kin,
enable
a
b
c
d
e
f
g
a
b
c
d
a
b
c
d
e
dataout
rdforce,
rdin
n
n+1
n+2
n+3
clk
reset_n
idle_del
enable
datain [9:0]
valid
dataout [7:0]
kout
kerr
rderr
rdin
rdforce
rdout
rdcascade
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