Motorola MCF5282, MCF5281 user manual Reset and Configuration Override Timing

Models: MCF5282 MCF5281

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Reset and Configuration Override Timing

Table 33-13. GPIO Timing1, 2 (Continued)

(VDD = 2.7 to 3.6 V, VSS = 0 V, VDDH = 5 V)

NUM

Characteristic

Symbol

Min

Max

Unit

 

 

 

 

 

 

G1a

CLKOUT High to PQA/PQB Output Valid

tCHPAOV

12

ns

G2a

 

 

 

 

 

CLKOUT High to PQA/PQB Output Invalid

tCHPAOI

2

ns

 

G3a

PQA/PQB Input Valid to CLKOUT Low

tPAVCH

10

ns

G4a

 

 

 

 

 

CLKOUT Low to PQA/PQB Input Invalid

tCHPAI

2

ns

 

1GPIO pins include: Ports A-I, INT, SPI, SCI1/2 (including SCI functions), FlexCAN and Timer.

2Because 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.

CLKOUT

 

 

 

G1

G2

GPIO Outputs

 

 

 

G1a

G2a

PQA/PQB Outputs

 

 

G3

G4

 

GPIO Inputs

 

 

 

G3a

G4a

PQA/PQB Inputs

 

 

Figure 33-7. GPIO Timing

33.10 Reset and Configuration Override Timing

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

 

 

Input valid to CLKOUT High

 

 

 

 

tRVCH

10

ns

RSTI

 

 

 

R2

 

CLKOUT High to

 

Input invalid

 

 

 

 

tCHRI

2

ns

 

RSTI

 

 

 

R3

 

 

Input valid Time 2

 

 

 

 

tRIVT

5

tCYC

RSTI

 

 

 

R4

 

CLKOUT High to

 

 

Valid

 

 

 

 

tCHROV

12

ns

 

RSTO

 

 

 

33-18

MCF5282 User’s Manual

MOTOROLA

Page 768
Image 768
Motorola MCF5282, MCF5281 user manual Reset and Configuration Override Timing