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MC68HC711D3CFNE2 Datasheet, PDF (112/124 Pages) Freescale Semiconductor, Inc – Power Saving STOP and WAIT Modes | |||
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Freescale Semiconductor, Inc.
Table A-5 Peripheral Port Timing
Characteristic
Frequency of Operation (E-Clock Frequency)
E-Clock Period
Peripheral Data Setup Time
MCU Read of Ports A, B, C, and D
Peripheral Data Hold Time
MCU Read of Ports A, B, C, and D
Delay Time, Peripheral Data Write
Symbol
fo
tcyc
tPDSU
1.0 MHz
Min Max
dc 1.0
1000 â
100 â
2.0 MHz
Min Max
dc 2.0
500 â
100 â
3.0 MHz
Min Max
dc 3.0
333 â
100 â
Unit
MHz
ns
ns
tPDH
50 â 50
â
50 â ns
tPWD
MCU Write to Port A
MCU Writes to Ports B, C, and D
tPWD = 1/4 tcyc + 150 ns
â 200 â 200 â 200 ns
â 350 â 225 â 183 ns
NOTES:
1. Port C and D timing is valid for active drive (CWOM and DWOM bits not set in PIOC and SPCR registers respec-
tively).
2. All timing is shown with respect to 20% VDD and 70% VDD, unless otherwise noted.
MCU WRITE TO PORT
E
PORTS
B, C, D
PORT A
PREVIOUS PORT DATA
t PWD
PREVIOUS PORT DATA
NEW DATA VALID
tPWD
NEW DATA VALID
D3 PORT WRITE TIM
Figure A-6 Port Write Timing Diagram
E
PORTS
A, B, C, D
MCU READ OF PORT
tPDSU
tPDH
Figure A-7 Port Read Timing Diagram
D3 PORT READ TIM
ELECTRICAL CHARACTERISTICS
A-8
TECHNICAL DATA
For More Information On This Product,
Go to: www.freescale.com
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