KMPC8548ECVTAUJC Freescale Semiconductor, KMPC8548ECVTAUJC Datasheet - Page 33
KMPC8548ECVTAUJC
Manufacturer Part Number
KMPC8548ECVTAUJC
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.KMPC8548ECVTAUJC.pdf
(143 pages)
Specifications of KMPC8548ECVTAUJC
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Figure 13
8.2.4
This section describes the TBI transmit and receive AC timing specifications.
8.2.4.1
Table 30
Freescale Semiconductor
TCG[9:0] setup time GTX_CLK going high
TCG[9:0] hold time from GTX_CLK going high
GTX_CLK rise (20%–80%)
GTX_CLK fall time (80%–20%)
Notes:
1. The symbols used for timing specifications follow the pattern of t
2. Guaranteed by design.
inputs and t
transmit timing (TT) with respect to the time from t
state (V) or setup time. Also, t
(H) until the referenced data signals (D) reach the invalid state (X) or hold time. Note that, in general, the clock reference
symbol representation is based on three letters representing the clock of a particular functional. For example, the subscript
of t
letter: R (rise) or F (fall).
TTX
represents the TBI (T) transmit (TX) clock. For rise and fall times, the latter convention is used with the appropriate
provides the TBI transmit AC timing specifications.
shows the MII receive AC timing diagram.
TBI AC Timing Specifications
(first two letters of functional block)(reference)(state)(signal)(state)
TBI Transmit AC Timing Specifications
RXD[3:0]
RX_CLK
Parameter/Condition
MPC8548E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 7
RX_DV
RX_ER
TTKHDX
Table 30. TBI Transmit AC Timing Specifications
Figure 13. MII Receive AC Timing Diagram
t
t
MRXH
symbolizes the TBI transmit timing (TT) with respect to the time from t
MRDVKH
t
MRX
TTX
(K) going high (H) until the referenced data signals (D) reach the valid
Valid Data
t
Symbol
MRXF
t
t
TTKHDX
TTKHDV
t
t
TTXR
TTXF
(first two letters of functional block)(signal)(state )(reference)(state)
for outputs. For example, t
2
2
1
t
MRDXKL
t
MRXR
Min
2.0
1.0
—
—
Enhanced Three-Speed Ethernet (eTSEC)
TTKHDV
Typ
—
—
—
—
symbolizes the TBI
Max
TTX
1.0
1.0
—
—
(K) going high
Unit
ns
ns
ns
ns
for
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