2.5 GBIT 2 X 2 DUAL CROSSPOINT SWITCH
S3054
Table 2. Pin Assignment and Descriptions
Pin Name
INA0P
Level
I/O
Pin#
Description
Diff.
LVPECL
I
42
41
Differential input from the downstream PBC port.
INA0N
INA1P
INA1N
Diff.
LVPECL
I
I
50
51
Serial input from the local disk drive.
Differential input from the downstream PBC port.
Serial input from the local disk drive.
A Low level selects INA0P/N.
A High level selects INA1P/N.
A Low level selects INB0P/N.
A High level selects INB1P/N.
Channel A0 serial output.
INB0P
INB0N
Diff.
LVPECL
37
38
INB1P
INB1N
Diff.
LVPECL
I
29
28
SELA0
SELA1
SELB0
SELB1
LVTTL
LVTTL
LVTTL
LVTTL
I
43
49
36
30
I
I
I
OUTA0P
OUTA0N
Diff.
CML
O
O
O
O
23
22
OUTA1P
OUTA1N
Diff.
CML
17
18
Channel A1 serial output.
OUTB0P
OUTB0N
Diff.
CML
4
5
Channel B0 serial output.
OUTB1P
OUTB1N
Diff.
CML
10
9
Channel B1 serial output.
VCC
6,8,19
20,21,32
34,45,46
47
Power Supply, 3.3V Nominal.
3
April 10, 2001 / Revision D