SC220 ZARLINK [Zarlink Semiconductor Inc], SC220 Datasheet - Page 27

• Manufacturer Part Number: SC220
• Description: XpressFlow 2020 Ethernet Routing Switch Chipset
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

XpressFlow-2020 Series –
Ethernet Switch Chipset
4.2 CPU Bus Interface:
© 1998 Vertex Networks, Inc.
1999
Symbol
P_D[31:0]
P_D[31:0]
P10
P11
P12
P15
P16
P17
P18
P1
P2
P3
P4
P5
P6
P7
P8
P9
P_RDY#
P_CLK
P_CLK
P_INT
Output valid delay timing
Output float delay timing
P_RST# input setup time
P_RST# input hold time
P_ADS# input set-up time
P_ADS# input hold time
P_W/R# input set-up time
P_W/R# input hold time
P_CS# input set-up time
P_CS# input hold time
P_A[11:1] input set-up time
P_A[11:1] input hold time
P_D[31:0]# input set-up time
P_D[31:0]# input hold time
P_D[31:0]# output float delay
P_D[31:0]# # output valid delay
P_RDY# output valid delay
P_INT# output valid delay
CPU Bus Interface –
CPU Bus Interface –
P
R
E
Parameter
L
P16-min
P16-min
P17-min
P18-min
P15
P16-max
P17-max
P18-max
I
M
AC Characteristics -- CPU Bus Interface
I
N
A
R
Y
Min
(ns)
3.5
3.5
3.5
3.5
3.5
3.5
13
13
13
13
13
13
-40
I
26
Max
(ns)
8.5
17
17
13
N
F
P_D[31:0]
P_A[11:1]
P_ADS#
P_RST#
P_W/R#
(ns)
Min
P_CLK
P_CS#
2.5
2.5
2.5
2.5
2.5
2.5
O
10
10
10
10
10
10
Input setup and hold timing
-50
R
Max
(ns)
CPU Bus Interface –
6.5
13
13
10
M
A
(ns)
Min
T
8
2
8
2
8
2
8
2
8
2
8
2
-66
I
XpressFlow Engine
P11
P1
P9
P3
P5
P7
Max
O
(ns)
10
10
8
5
N
P4
P6
P8
Rev. 4.5 – February
P2
C
C
C
L
L
L
= 60pf
= 60pf
= 20pf
P10
P12
Note:
SC220