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MEC1322 Datasheet(PDF) 417 Page - Microchip Technology

Part # MEC1322
Description  Keyboard and Embedded Controller for Notebook PC
PDF  456 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MEC1322 Datasheet(HTML) 417 Page - Microchip Technology

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 2014 - 2015 Microchip Technology Inc.
DS00001719D-page 417
MEC1322
38.17 Serial Peripheral Interface (SPI) Timings
FIGURE 38-24:
SPI CLOCK TIMING
Note 38-14
This timing value applies when the 48MHz ring oscillator is at its 48MHz operating frequency (with
32 kHz present after frequency lock to 48MHz).
TABLE 38-22: SPI CLOCK TIMING PARAMETERS
NAME
DESCRIPTION
MIN
TYP
MAX
UNITS
Tr
SPI Clock Rise Time. Measured
from 10% to 90%.
10% of SPCLK
Period
ns
Tf
SPI Clock Fall Time. Measured
from 90% to 10%.
10% of SPCLK
Period
ns
Th/Tl
SPI Clock High Time/SPI Clock
Low Time
40% of SPCLK
Period
50% of SPCLK
Period
60% of SPCLK
Period
ns
Tp
SPI Clock Period – As selected
by SPI Clock Generator Register
20.8 (Note 38-
14)
62492.25
ns
Tr
Tf
Th
Tl
Tp
SPICLK



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