參數(shù)資料
型號: 28233-11
廠商: CONEXANT SYSTEMS
元件分類: 數(shù)字傳輸電路
英文描述: ATM Transmitter/Receiver with UTOPIA Interface
中文描述: TRANSCEIVER, PQFP160
封裝: PLASTIC, MQFP-160
文件頁數(shù): 145/161頁
文件大?。?/td> 1832K
代理商: 28233-11
Read Strobe Recovery Time
CN8223
4.0 Electrical and Mechanical Specifications
ATM Transmitter/Receiver with UTOPIA Interface
4.3 Timing
100046C
Conexant
4-11
4.3.3 FIFO Interface Timing
Table 4-7
and
Figure 4-6
display the timing requirements and characteristics of
the FIFO port interface. All times are in nanoseconds.
Table 4-7. FIFO Port Interface Timing
Name
Interval
Description
PHY Type 4-7
Min
PHY Type 0-3
Min
tptx,tprx
Transmit or Receive Clock Input Period
6.4
22.4
twdl
1
2
Write Strobe Low Pulse Width
4
×
tprx
2
×
tprx
twdr
2
4
Write Strobe Recovery Time
4
×
tprx
6
×
tprx
tfws
3
4
Full Input Setup to Write Strobe Falling Edge
4.0
4.0
tivws
5
7
Invalid Indication Stable before Write Strobe Rising Edge
3
×
tprx
2
×
tprx
tdows
6
7
Data Out Valid before Write Strobe Rising Edge
3
×
tprx
2
×
tprx
twsiv
12
13
Invalid Indication Stable after Write Strobe Rising Edge
3
×
tprx
4
×
tprx
twsdo
7
8
Data Out Valid after Write Strobe Rising Edge
3
×
tprx
4
×
tprx
tsyws
9
12
Receive Sync Valid before Write Strobe Rising Edge
3
×
tprx
2
×
tprx
twssy
12
14
Receive Sync Valid after Write Strobe Rising Edge
3
×
tprx
4
×
tprx
terr
10
11
Write Error Output Valid after Write Strobe Falling Edge
1.0
1.0
trdl
15
17
Read Strobe Low Pulse Width
4
×
tptx
2
×
tprx
trdr
17
20
4
×
tptx
6
×
tprx
tdirs
16
17
Data In Setup before Read Strobe Rising Edge
3.0
3.0
trsdi
17
18
Data In Hold after Read Strobe Rising Edge
2.0
2.0
tsyrs
19
21
Transmit Sync Valid before Read Strobe Rising Edge
3
×
tptx
2
×
tprx
trssy
21
22
Transmit Sync Valid after Read Strobe Rising Edge
4
×
tptx
4
×
tprx
tfsrs
23
26
Frame Sync Valid before Read Strobe Rising Edge
2
×
tptx
2
×
tprx
ters
24
26
Empty Input Setup to Read Strobe Rising Edge
4.0
4.0
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