EA218E Datasheet, PDF (24/28 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
4.2 CPU Bus Interface:
P_CLK
P_D[31:0]
P15
P16-min
CPU Bus Interface –
Output float delay timing
P_CLK
P_D[15:0]
P_RDY#
P_INT
P16-max
P16-min
P17-max
P17-min
P18-max
P18-min
P_CLK
P_RST#
P_ADS#
P_W/R#
P_CS#
P_A[11:1]
P_D[15:0]
P1 P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
CPU Bus Interface –
Output valid delay timing
CPU Bus Interface –
Input setup and hold timing
Symbol
Parameter
P1 P_RST# input setup time
P2 P_RST# input hold time
P3 P_ADS# input set-up time
P4 P_ADS# input hold time
P5 P_W/R# input set-up time
P6 P_W/R# input hold time
P7 P_CS# input set-up time
P8 P_CS# input hold time
P9 P_A[11:1] input set-up time
P10 P_A[11:1] input hold time
P11 P_D[31:0]# input set-up time
P12 P_D[31:0]# input hold time
P15 P_D[31:0]# output float delay
P16 P_D[31:0]# # output valid delay
P17 P_RDY# output valid delay
P18 P_INT# output valid delay
-40
Min Max
(ns) (ns)
13
3.5
13
3.5
13
3.5
13
3.5
13
3.5
13
3.5
17
8.5
8.5
17
-50
Min Max
(ns) (ns)
10
2.5
10
2.5
10
2.5
10
2.5
10
2.5
10
2.5
13
6.5
6.5
13
-66
Min Max
(ns) (ns)
Note:
8
2
8
2
8
2
8
2
8
2
8
2
10
5 CL = 60pf
5 CL = 60pf
10 CL = 20pf
AC Characteristics -- CPU Bus Interface
© 1998 Zarlink Semiconductor, Inc.
23
Rev.2.1 – February, 1999