SC220 ZARLINK [Zarlink Semiconductor Inc], SC220 Datasheet - Page 6

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

XpressFlow-2020 Series –
Ethernet Switch Chipset
© 1998 Vertex Networks, Inc.
1999
Pin No(s).
185,184,183,182,180,
179,177,176,175,174,
172,171,169,168,167,
166,164,163,160,159,
157,156,154,153,151,
150,149,148,146,145,
143,142
211,210,208,207,205,
204,203,202,201,199,
198
189
190
192
187
60,59,58,57,56,54,53,51,
50,49,48,47,46,45,43,42,
40,39,38,37,36,34,33,30,
29,27,26,25,24,23,22,21,
8,6,5,3,2,1,256,255,254,
253,251,250,248,247,
246,245,244
9
63, 11, 19
242, 62, 10, 18
12,13,14,15
16
66
XpressFlow Bus Interface
196
191
183
184
185
Control Buffer Memory Interface
P
R
E
L
I
M
P_D[31:0]
P_A[11:1]
P_RSTIN#
P_RSTOUT
P_INT
P_CLK
L_D[31:0]
L_A[18:2]
L_A[19] /
L_OE[3]#
L_OE[2:0]#
L_WE[3:0]#,
L_BWE[3:0]# CMOS Output Local Memory Bus – Byte Write Enable
L_ADSC#
L_CLK
P_ADS#
P_RWC
P_RDY#
P_BS16#
P_CS#
I
Symbol
N
A
R
CMOS Output CPU RESET Output
CMOS Output Management Bus – Interrupt Request
CMOS Output Local Memory Bus – Address Bit [17:2]
CMOS Output Local Memory Bus – Address Bit [19:18]
CMOS Output Local Memory Bus- Read Chip Select
CMOS Output Local Memory Bus – Write Chip Select
CMOS Output Local Memory Bus – Controller Address
CMOS Output Local Memory Bus – Synchronous Clock
Y
CMOS Out-
CMOS Out-
TTL I/O-TS
TTL I/O-TS
TTL In-ST
TTL Input
TTL Input
TTL Input
TTL Input
TTL Input
(5VT)
(5VT)
(5VT)
(5VT)
(5VT)
(5VT)
(5VT)
Type
OD
OD
I
5
N
F
Name & Functions
Management Bus – Data Bit [31:0]
Management Bus – Address Bit [11:1]
System RESET Input
CPU Clock
Local Memory Bus – Data Bit [31:0]
or Memory Read Chip Select [3]
[2:0]
[3:0]
[3:0]
Status
O
Management Bus – Address Strobe
Management Bus – Read/Write Control
Management Bus – Data Ready
Management Bus – 16 bit Data Bus
Management Bus – Chip Select
R
M
A
T
I
XpressFlow Engine
O
N
Rev. 4.5 – February
SC220