BCM43907 Preliminary Data Sheet
Interface Timing and AC Characteristics
Section 17: Interface Timing and AC
Characteristics
Ethernet MAC (MII/RMII) Interface Timing
MII Receive Packet Timing
Figure 17 and Table 39 provide the MII receive packet timing.
Figure 17: MII Receive Packet Timing
t404
t402
t401
t403
RXC
RXDV
RXD[3:0]
Table 39: MII Receive Packet Timing Parameters
Minimum Typical
Parameter
Description
Maximum Units
t401
t402
RXDV and RXD[3:0] to RXC rising setup time 10
–
–
ns
ns
ns
ns
ns
ns
%
RXC clock period (10BASE-T mode)
RXC clock period (100BASE-TX mode)
RXC low/high time (10BASE-T mode)
RXC low/high time (100BASE-TX mode)
–
400
40
–
–
–
–
t403
160
16
240
24
–
–
t404
–
RXDV and RXD[3:0] to RXC rising hold time 10
–
Duty cycle
40
50
60
Broadcom®
March 12, 2016 • 43907-DS104-R
Page 99
BROADCOM CONFIDENTIAL
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