T8207 Datasheet, PDF (155/158 Pages) Agere Systems – ATM Interconnect

Advance Data Sheet
September 2001
19 Timing Requirements (continued)
19.4 Cell Bus Timing
CelXpres T8207
ATM Interconnect
t1
t2
t5
CB_RC*
CB_WC*
CB_D*[31:0], CB_ACK*¹,
CB_FS* (OUTPUT)
CB_D*[31:0], CB_ACK*,
CB_FS* (INPUT)
1. 25 pF load.
t3
t4
Figure 29. Cell Bus Timing
Table 147. Cell Bus Timing
Symbol
t1
t2
t3
t4
t5
Parameter
cb_rc* Falling Edge to cb_wc* Falling Edge
cb_wc* Falling Edge to Output Valid¹
Input Setup to cb_rc* Falling Edge
Input Hold from cb_rc* Falling Edge
cb_wc* Falling Edge to Output Invalid¹
1. Pin loading = 25 pF.
Min
Typ
1.5
—
—
—
1
—
2
—
3
—
5-7797bF
Max Unit
4
ns
11.5
ns
—
ns
—
ns
—
ns
Agere Systems Inc.
155