mpc8560vt667jb Freescale Semiconductor, Inc, mpc8560vt667jb Datasheet - Page 29

• Manufacturer Part Number: mpc8560vt667jb
• Description: Mpc8560 Powerquicc Iii Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

7.2.3 TBI AC Timing Specifications
This section describes the TBI transmit and receive AC timing specifications.
7.2.3.1
Table 25
Figure 12
Freescale Semiconductor
At recommended operating conditions with LV
GTX_CLK clock period
GTX_CLK duty cycle
TCG[9:0] setup time GTX_CLK going high
TCG[9:0] hold time from GTX_CLK going high
GTX_CLK clock rise and fall time
Notes:
1.The symbols used for timing specifications herein follow the pattern of t
2.Signal timings are measured at 0.7 V and 1.9 V voltage levels.
3.Guaranteed by design.
)(reference)(state)
symbolizes the TBI transmit timing (TT) with respect to the time from t
signals (D) reach the valid state (V) or setup time. Also, t
to the time from t
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
times, the latter convention is used with the appropriate letter: R (rise) or F (fall).
provides the TBI transmit AC timing specifications.
shows the TBI transmit AC timing diagram.
TBI Transmit AC Timing Specifications
GTX_CLK
TCG[9:0]
Parameter/Condition
for inputs and t
TTX
MPC8560 Integrated Processor Hardware Specifications, Rev. 4.2
(K) going high (H) until the referenced data signals (D) reach the invalid state (X) or hold time.
Table 25. TBI Transmit AC Timing Specifications
(first two letters of functional block)(reference)(state)(signal)(state)
Figure 12. TBI Transmit AC Timing Diagram
t
TTXH
DD
t
TTKHDV
of 3.3 V ± 5%, or LV
t
TTX
TTX
t
DD
TTXR
represents the TBI (T) transmit (TX) clock. For rise and fall
TTKHDX
t
=2.5V ± 5%.
Symbol
TTXH
t
t
TTKHDX
t
TTKHDV
TTXF
t
, t
TTX
TTXF
/t
TTX
symbolizes the TBI transmit timing (TT) with respect
1
2,3
(first two letters of functional block)(signal)(state
t
TTX
TTKHDX
t
TTXR
(K) going high (H) until the referenced data
Min
2.0
1.0
40
—
—
Ethernet: Three-Speed, MII Management
for outputs. For example, t
Typ
8.0
—
—
—
—
Max
1.0
60
—
—
—
TTKHDV
Unit
ns
ns
ns
ns
%
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