mcf5274l Freescale Semiconductor, Inc, mcf5274l Datasheet - Page 66
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mcf5274l
Manufacturer Part Number
mcf5274l
Description
Mcf5275 Integrated Microprocessor Family Hardware
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MCF5274L.pdf
(76 pages)
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Preliminary Electrical Characteristics
Figure 20
10.11.5USB Interface AC Timing Specifications
Table 58
66
US1
US2
US3
US4
US5
US6
Num
Num
M14 FECn_MDC pulse width high
M15 FECn_MDC pulse width low
lists USB Interface timings.
shows MII serial management channel timings listed in
FECn_MDC (output)
FECn_MDIO (output)
FECn_MDIO (input)
USB_CLK frequency of operation
USB_CLK fall time (V
USB_CLK rise time (V
USB_CLK duty cycle (at 0.5 x O V
USB_RP, USB_RN, USB_RXD valid to USB_CLK high
USB_CLK high to USB_RP, USB_RN, USB_RXD invalid
MCF5275 Integrated Microprocessor Family Hardware Specification, Rev. 1.1
Figure 20. MII Serial Management Channel Timing Diagram
Table 57. MII serial management channel timings.
IH
Characteristic
IL
= 2.4 V to V
= 0.5 V to V
Table 58. USB Interface timings.
Characteristic
M12
M13
DD
IL
IH
)
= 0.5 V)
Data Outputs
Preliminary
= 2.4 V)
Data Inputs
M14
M10
M11
M15
Table
Min
48
—
45
—
6
6
57.
40% 60% MDC period
40% 60% MDC period
Min
Max
Max
48
55
—
—
2
2
Freescale Semiconductor
Unit
Units
MHz
ns
ns
ns
ns
%