vsc880 Vitesse Semiconductor Corp, vsc880 Datasheet - Page 21

• Manufacturer Part Number: vsc880
• Description: High Performance 16x16 Serial Crosspoint Switch Semiconductor Corporation
• Manufacturer: Vitesse Semiconductor Corp

G52191-0, Rev 4.2
01/05/01
Data Sheet
VSC880
Table 3: Receive Data Output Timing Table
Table 4: CPU Interface Timing Table
Parameter
Parameter
T
T
RESET
T
T
T
CDATA[7:0]
T
T
T
T
T
CDATA[7:0]
T
T
INT
ADDR[5:0]
ADDR[5:0]
WV
WC
OK
WS
SU
RV
RZ
RD
D
H
CWEN
CWEN
CSEL
CSEL
Interrupt pulse width
RESET, RESYNEN pulse width
CSEL falling edge to valid address
CSEL inactive between read cycles
CWEN valid to CSEL falling edge
CSEL active to CWEN change
Valid data and address during a write
CSEL low time during a write
CSEL cycle time during a write
CSEL active to valid data
CSEL deactivate to high impedance data
CSEL active to low impedance data
Hi-Z
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
T
T
SU
SU
Tel: (800) VITESSE • FAX: [phone] • Email: [e-mail]
T
T
Figure 11: CPU Interface Write Cycle Timing
Figure 12: CPU Interface Read Cycle Timing
OK
A
VITESSE
SEMICONDUCTOR CORPORATION
T
T
Description
WS
RD
Description
Valid Address
Valid Address
T
Valid Data
RV
T
T
WC
WV
Internet: www.vitesse.com
Valid Data
T
D
T
RZ
Hi-Z
Min
15
64
Min
10
45
20
55
15
5
5
0
Typ
T
T
Typ
H
H
High Performance 16x16
Serial Crosspoint Switch
Max
Max
45
5
5
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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