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VSC8540RT Datasheet(PDF) 77 Page - Microchip Technology

Part # VSC8540RT
Description  Radiation-Tolerant Single Port Fast Ethernet Copper PHY with RGMII/MII/RMII Interfaces
PDF  87 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

VSC8540RT Datasheet(HTML) 77 Page - Microchip Technology

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2022 Microchip Technology Inc. and its subsidiaries
DS60001603E-page 77
VSC8540RT
FIGURE 8-10:
SERIAL MANAGEMENT INTERFACE TIMING
8.4.13
RESET TIMING
This section contains the AC specifications that apply to device reset functionality. The signal applied to the NRESET
input must comply with the specifications listed in the following table.
TABLE 8-30:
RESET TIMING AC CHARACTERISTICS
Parameter
Symbol Minimum Typical Maximum Unit
NRESET assertion time after power supplies and clock stabilize tW
2ms
Recovery time from reset inactive to device fully active
tREC
15
ms
NRESET pulse width
tW(RL)
100
ns
Wait time between NRESET de-assert and access of the SMI
interface
tWAIT
15
ms
tCYC
tWL
tWH
tSU
tH
tCO
Data
Data
MD IO
(read)
MD IO
(w rite)
MDC



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