SC220 ZARLINK [Zarlink Semiconductor Inc], SC220 Datasheet - Page 5

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

XpressFlow-2020 Series –
Ethernet Switch Chipset
1.2 Pin Assignment (Preliminary)
© 1998 Vertex Networks, Inc.
1999
Pin No(s).
XpressFlow Bus Interface
122,121,119,118, 116
114,113,111,109,108,
106,105,104,103,101,
100,98,97,96,95,93,92,
90,89,88,87,85,84,82,
80,79,77
71
69
72
70
123
140,138,135,133,131,
129,126,124
141,139,137,134,132,
130,128,125
73
75
Note:
Out-OD
I/O-OD
Output
I/O-TS
P
Input
I-ST
5VT
R
#
E
Active low signal
Input signal
Input signal with Schmitt-Trigger
Output signal (Tri-State driver)
Output signal with Open-Drain driver
Input & Output signal with Tri-State driver
Input & Output signal with Open-Drain driver
Input with 5V Tolerance
L
I
M
S_D[31:27] /
P_C[0:4]
S_D[26:0]
S_MSGEN#
S_EOF#
S_IRDY
S_TABT#
S_HPREQ#
S_REQ[8:1]#
S_GNT[8:1]#
S_OVLD#
S_CLK
I
Symbol
N
A
R
CMOS Input ** XpressFlow Bus – Bus Request [8:1]
CMOS I/O-OD XpressFlow Bus – Target Abort
CMOS I/O-OD XpressFlow Bus – High Priority Request
CMOS I/O-TS XpressFlow Bus – Data Bit [31:28]
CMOS I/O-TS XpressFlow Bus – Data Bit [27:0]
CMOS I/O-TS XpressFlow Bus – Message Envelope
CMOS I/O-TS XpressFlow Bus – End of Frame
CMOS I/O-TS XpressFlow Bus – Initiator Ready
CMOS Output XpressFlow Bus – Bus Grant [8:1]
CMOS Output XpressFlow Bus – Bus Overload
Y
CMOS Input
Type
I
4
N
F
O
Name & Functions
Processor Interface Configuration Bit
[0:4]
XpressFlow Bus – Clock
R
M
A
T
I
XpressFlow Engine
O
N
Rev. 4.5 – February
SC220
or