33-18
MCF5282 User’s Manual
MOTOROLA
Reset and Configuration Override Timing
Figure 33-7. GPIO Timing
33.10 Reset and Configuration Override Timing
G1a
G2a
CLKOUT High to PQA/PQB Output Valid
t
CHPAOV
—
12
ns
CLKOUT High to PQA/PQB Output Invalid
t
CHPAOI
2
—
ns
G3a
G4a
PQA/PQB Input Valid to CLKOUT Low
t
PAVCH
10
—
ns
CLKOUT Low to PQA/PQB Input Invalid
t
CHPAI
2
—
ns
1
GPIO pins include: Ports A-I, INT, SPI, SCI1/2 (including SCI functions), FlexCAN and Timer.
2
Because of long delays associated with the PQA/PQB pads, signals on the PQA/PQB pins will be updated on the
following edge of the clock.
Table 33-14. Reset and Configuration Override Timing
(V
DD
= 2.7 to 3.6 V, V
SS
= 0 V)
1
NUM
Characteristic
Symbol
Min
Max
Unit
R1
RSTI Input valid to CLKOUT High
t
RVCH
10
—
ns
R2
CLKOUT High to RSTI Input invalid
t
CHRI
2
—
ns
R3
RSTI Input valid Time
2
t
RIVT
5
—
t
CYC
R4
CLKOUT High to RSTO Valid
t
CHROV
—
12
ns
Table 33-13. GPIO Timing
1,
2
(Continued)
(V
DD
= 2.7 to 3.6 V, V
SS
= 0 V, V
DDH
= 5 V)
NUM
Characteristic
Symbol
Min
Max
Unit
G1
CLKOUT
GPIO Outputs
G2
PQA/PQB Outputs
G2a
G3a
G4a
PQA/PQB Inputs
G3
G4
GPIO Inputs
G1a
Содержание ColdFire MCF5281
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