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ECE1200 Datasheet(PDF) 68 Page - Microchip Technology

Part # ECE1200
Description  eSPI to LPC Bridge
PDF  87 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

ECE1200 Datasheet(HTML) 68 Page - Microchip Technology

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ECE1200
DS00003093C Draft-page 68
 2018-2021 Microchip Technology Inc.
9.2.3
PCI, PCI_24 PIN TYPE INPUT TIMING
See the table in Section 2.2.1, "Pin Assignments, 40-Pin VQFN," on page 11 for the pin types. PCI and PCI_24 pin types
have identical input characteristics.
9.3
eSPI Interface Timing
The eSPI Interface conforms to the timings specified by Intel for 50MHz eSPI operation. See the eSPI reference docu-
ments listed in Section 5.2, "References," on page 25.
The frequency is selected strictly using Soft-Strap settings for the Intel Chipset, and the ECE1200 does not itself nego-
tiate to limit it. During initialization of the eSPI bus, the frequency used is 20MHz max, until the Soft-Strap options take
effect.
The clock frequency actually provided by the Intel Chipset may be documented as 48MHz instead. See the relevant
Intel specifications.
TABLE 9-4:
PCI, PCI_24 PIN TYPE INPUT TIMING PARAMETERS
Parameter
Symbol
MIN
TYP
MAX
Unit
Notes
Valid Input Setup to Clock
t1
7
ns
1
Valid Input Hold From Clock
t2
0
1
Note 1: PCI and PCI_24 pin input specs are identical.
t2
LPC_CLKn
Input
Signal
t1
valid



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