L-USS820FD-DB AGERE [Agere Systems], L-USS820FD-DB Datasheet - Page 10

• Manufacturer Part Number: L-USS820FD-DB
• Description: USB Device Controller
• Manufacturer: AGERE [Agere Systems]

USS-820FD
USB Device Controller
USB Device Controller
Register Timing Characteristics
Table 6. Register Access Timing—Special Function Register (SFR) Write
10
IOCSN
tWRRECC
tWRDHD
tWRASU
tWRAHD
tWRDSU
tWRREC
WRN
Symbol
tWRPW
D
A
Write Address Setup Time. Starts before the trailing edge of WRN or
IOCSN, whichever is first.
Write Address Hold. Starts after the trailing edge of WRN or IOCSN,
whichever is first.
Write Minimum Pulse Width. From the leading edge of WRN or IOCSN,
whichever is last, to the trailing edge of WRN or IOCSN, whichever is
first.
Write Data Setup. From data valid to the trailing edge of WRN or
IOCSN, whichever is first.
Write Data Hold. From the trailing edge of WRN or IOCSN, whichever is
first, to data not valid.
Recovery Time Between Write Attempts. From the trailing edge of
WRN or IOCSN, whichever is first, to the next leading edge of WRN or
IOCSN, whichever is last.
Recovery Time Between Write Completes. From the trailing edge of
WRN or IOCSN, whichever is first, to the next trailing edge of WRN or
IOCSN, whichever is first.
tWRDSU
Figure 6. Register Access Timing—SFR Write
tWRPW
tWRASU
(continued)
VALID
Parameter
VALID
tWRAHD
tWRDHD
tWRREC
tWRRECC
Data Sheet, Rev. 1
VALID
Agere Systems Inc.
Min
−10
−10
60
23
60
23
86
August 2004
VALID
Unit
ns
ns
ns
ns
ns
ns
ns
5-5353