EA218E Datasheet, PDF (25/28 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
4.3 Local Memory Interface:
L_CLK
L_D[31:0]
L1
L2
Local Memory Interface –
Input setup and hold timing
L_CLK
L_D[31:0]
L10
L3-min
Local Memory Interface –
Output float delay timing
L_CLK
L_D[31:0]
L_A[19:2]
L_CS[3:0]#
L_ADSC#
L_BWE[3:0]#
L_WE#]
L_OE#
L3-max
L3-min
L4-max
L4-min
L5-max
L5-min
L6-max
L6-min
L7-max
L7-min
L8-max
L8-min
L9-max
L9-min
Local Memory Interface –
Output valid delay timing
Symbol
Parameter
L1 L_D[31:0]# input set-up time
L2 L_D[31:0]# input hold time
L3 L_D[31:0]# output valid delay
L4 L_A[19:2] output valid delay
L6 L_ADSC# output valid delay
L7 L_BWE[3:0]# output valid delay
L8 L_WE# output valid delay
L9 L_OE# output valid delay
L10 L_D[31:0]# output float delay
-40
Min Max
(ns) (ns)
6.5
3
17
17
17
17
17
17
22
-50
Min Max
(ns) (ns)
5.5
2.5
13
13
13
13
13
13
18
-66
Min Max
(ns) (ns)
Note:
4
2
10 CL = 30pf
10 CL = 30pf
10 CL = 30pf
10 CL = 30pf
10 CL = 10pf
10 CL = 10pf
14
AC Characteristics – Local Memory Interface
© 1998 Zarlink Semiconductor, Inc.
24
Rev.2.1 – February, 1999