mpc8568e Freescale Semiconductor, Inc, mpc8568e Datasheet - Page 95

• Manufacturer Part Number: mpc8568e
• Description: Mpc8568e Powerquicc Iii Processor
• Manufacturer: Freescale Semiconductor, Inc

Figure 62
Figure 63
generally reference the rising edge of the clock, these AC timing diagrams also apply when the falling edge
is the active edge.
Figure 63
Freescale Semiconductor
Utopia inputs—Internal clock input setup time
Utopia inputs—External clock input setup time
Utopia inputs—Internal clock input Hold time
Utopia inputs—External clock input hold time
Notes:
1. Output specifications are measured from the 50% level of the rising edge of CLKIN to the 50% level of the signal.
2. The symbols used for timing specifications follow the pattern of t
Timings are measured at the pin.
(reference)(state)
t
from the high state (H) until outputs (O) are invalid (X).
UIKHOX
UtopiaCLK (input)
provides the AC test load for the Utopia.
through
shows the Utopia timing with external clock.
MPC8568E/MPC8567E PowerQUICC III™ Integrated Processor Hardware Specifications, Rev. 0
Output Signals:
Input Signals:
symbolizes the Utopia outputs internal timing (UI) for the time t
Utopia
Utopia
Figure 64
for inputs and t
Output
Characteristic
Table 74. Utopia AC Timing Specifications
Figure 63. Utopia AC Timing (External Clock) Diagram
t
UEIVKH
represent the AC timing from
(first two letters of functional block)(reference)(state)(signal)(state)
Figure 62. Utopia AC Test Load
Z
0
= 50 Ω
t
UEKHOX
t
UEKHOV
t
UEIXKH
Table
(first two letters of functional block)(signal)(state)
Symbol
t
t
t
t
UEIVKH
UEIXKH
UIIVKH
UIIXKH
R
74. Note that although the specifications
L
= 50 Ω
Utopia
1
2
(continued)
memory clock reference (K) goes
Min
OV
6
4
0
1
for outputs. For example,
DD
/2
Max
—
—
—
—
UTOPIA/POS
Unit
ns
ns
ns
ns
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