BT8222EPFF CONEXANT [Conexant Systems, Inc], BT8222EPFF Datasheet - Page 145

• Manufacturer Part Number: BT8222EPFF
• Description: ATM Transmitter/Receiver with UTOPIA Interface
• Manufacturer: CONEXANT [Conexant Systems, Inc]

CN8223
ATM Transmitter/Receiver with UTOPIA Interface
4.3.3 FIFO Interface Timing
Table 4-7. FIFO Port Interface Timing
100046C
t ptx, t prx
Name
t dows
t wsdo
t syws
t wssy
t ivws
t wsiv
t syrs
t rssy
t wdr
t dirs
t rsdi
t fsrs
t wdl
t fws
t err
t rdr
t ers
t rdl
Interval
12–13
12–14
10–11
15–17
17–20
16–17
17–18
19–21
21–22
23–26
24–26
9–12
1–2
2–4
3–4
5–7
6–7
7–8
—
Transmit or Receive Clock Input Period
Write Strobe Low Pulse Width
Write Strobe Recovery Time
Full Input Setup to Write Strobe Falling Edge
Invalid Indication Stable before Write Strobe Rising Edge
Data Out Valid before Write Strobe Rising Edge
Invalid Indication Stable after Write Strobe Rising Edge
Data Out Valid after Write Strobe Rising Edge
Receive Sync Valid before Write Strobe Rising Edge
Receive Sync Valid after Write Strobe Rising Edge
Write Error Output Valid after Write Strobe Falling Edge
Read Strobe Low Pulse Width
Read Strobe Recovery Time
Data In Setup before Read Strobe Rising Edge
Data In Hold after Read Strobe Rising Edge
Transmit Sync Valid before Read Strobe Rising Edge
Transmit Sync Valid after Read Strobe Rising Edge
Frame Sync Valid before Read Strobe Rising Edge
Empty Input Setup to Read Strobe Rising Edge
Table 4-7
the FIFO port interface. All times are in nanoseconds.
and
Figure 4-6
Description
Conexant
display the timing requirements and characteristics of
4.0 Electrical and Mechanical Specifications
PHY Type 4-7
4 × t prx
4 × t prx
3 × t prx
3 × t prx
3 × t prx
3 × t prx
3 × t prx
3 × t prx
4 × t ptx
4 × t ptx
3 × t ptx
4 × t ptx
2 × t ptx
Min
6.4
4.0
1.0
2.0
4.0
3.0
PHY Type 0-3
3.0
2.0
2 × t prx
4 × t prx
2 × t prx
4.0
2 × t prx
6 × t prx
2 × t prx
2 × t prx
4 × t prx
4 × t prx
2 × t prx
4 × t prx
2 × t prx
6 × t prx
22.4
Min
4.3 Timing
4.0
1.0
4-11