KL5KUSB101
USB to Ethernet Controller
Table 3.1.2 PHY SQE Transmit AC Characteristics (over recommended range)
Symbol
Parameter
Min Typ Max Unit Not
e
Tcol
PHYCOL assert delay –
– 1.6 us –
from PHYTEN fall
Tpco PHYCOL low width
0.5 –
– us –
3.2 U2E to PHY receive
Figure 3.2.1 U2E from PHY Receive AC Timing
PHYRCLK
(IN)
Trck
Tscd
Trch
Trcl
Thcd
PHYCD
(IN)
Tsrd
Thrd
PHYRXD
first
last
(IN)
Table 3.2.1 Receive from PHY AC Characteristics (over recommended range)
Symbol
Parameter
Min Typ Max Unit Not
e
Trck
PHYRCLK period
– 100 – ns 1
Frck
PHYRCLK frequency
–
10
– MH 1
z
Trch
PHYRCLK high width
–
50
– ns –
Trcl
PHYRCLK low width
–
50
– ns –
Tscd PHYCD setup time
to PHYRCLK rise
20
–
– ns –
Thcd PHYCD hold time
from PHYTCLK rise
10
–
– ns –
Tsrd
PHYRXD setup time
to PHYRCLK fall
20
–
– ns –
Thrd
PHYRXD hold time
from PHYRCLK fall
10
–
– ns –
Note: 1) PHY generates the 10MHz clock.
Ver. 2.4
Kawasaki LSI • 2570 North First Street • Suite 301 • San Jose, CA 95131 • Tel: (408) 570-0555 • Fax: (408) 570-0567 • www.klsi.com
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