EA218E Datasheet, PDF (23/28 Pages) Zarlink Semiconductor Inc – EA218E 8-Port Ethernet Access Controller XpressFlow 2020 Ethernet Routing Switch Chipset

PRELIMINARY
XpressFlow-2020 Series –
Ethernet Switch Chipset
INFORMATION
EA218E
8-Port 10Mb Ethernet Access Controller
Symbol
Parameter
S1 S_D[31:0] output valid delay
S2 S_MSGEN# output valid delay
S3 S_EOF# output valid delay
S4 S_IRDY output valid delay
S6 S_TABT# output valid delay
S7 S_HPREQ# output valid delay
S8 S_REQ# output valid delay
S12 S_D[31:0] output float delay
S13 S_MSGEN# output float delay
S14 S_EOF# output float delay
S15 S_IRDY output float delay
S17 S_D[31:0] input set-up time
S18 S_D[31:0] input hold time
S19 S_MSGEN# input set-up time
S20 S_MSGEN# input hold time
S21 S_EOF# input set-up time
S22 S_EOF# input hold time
S23 S_IRDY input set-up time
S24 S_IRDY input hold time
S27 S_TABT# input set-up time
S28 S_TABT# input hold time
S29 S_HPREQ# input set-up time
S30 S_HPREQ# input hold time
S31 S_GNT# input set-up time
S32 S_GNT# input hold time
S33 S_OVLD# input set-up time
S34 S_OVLD# input hold time
-40
Min Max
(ns) (ns)
6 14
6 14
6 14
6 14
6 14
6 14
6 14
18
18
18
18
2
5.5
2
5.5
2
5.5
2
5.5
13
5.5
2
5.5
13
5.5
15
5.5
-50
Min Max
(ns) (ns)
5 11
5 11
5 11
5 11
5 11
5 11
5 11
15
15
15
15
1.5
4.5
1.5
4.5
1.5
4.5
1.5
4.5
10
4.5
1.5
4.5
10
4.5
12
4.5
-66
Min Max
(ns) (ns)
Note:
4 8.5 CL = 50pf
4 8.5 CL = 50pf
4 8.5 CL = 50pf
4 8.5 CL = 50pf
4 8.5 CL = 50pf
4 8.5 CL = 50pf
4 8.5 CL = 20pf
12
12
12
12
1
3.5
1
3.5
1
3.5
1
3.5
8
3.5
1
3.5
8
3.5
9
3.5
AC Characteristics – XpressFlow Bus Interface
© 1998 Zarlink Semiconductor, Inc.
22
Rev.2.1 – February, 1999