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LAN9117 데이터시트(HTML) 14 Page - Microchip Technology

부품명 LAN9117
상세내용  High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
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제조사  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
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LAN9117 데이터시트(HTML) 14 Page - Microchip Technology

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LAN9117
DS00002267A-page 14
 2005-2016 Microchip Technology Inc.
Note 2-2
The external SMI port is selected when SMI_SEL = 1. When SMI_SEL = 0, MDIO is tri-stated and
MDC is driven low.
30
Management Data
IO/External PHY
Detect
MDIO
(EXT_PHY_DET)
I/O8 (PD)
1
Management Data IO: When
SMI_SEL = 1, this pin is the MII SMI
serial IO bus pin.
External PHY Detect: This pin also
functions as a strap input, which can
be used to indicate the presence of an
external PHY.
See Note 2-2.
Note:
See
Section
5.3.9,
"HW_CFG—Hardware
Configuration Register" for
more information on SMI_-
SEL and EXT_PHY_DET
31
Management Data
Clock
MDC
O8 (PD)
1
Management Data Clock: When
SMI_SEL = 1, this pin is the MII
management data clock. When
SMI_SEL=0, this pin is driven low.
See Note 2-2.
Note:
See
Section
5.3.9,
"HW_CFG—Hardware
Configuration Register" for
more information on SMI_-
SEL.
TABLE 2-6:
MII INTERFACE SIGNALS (CONTINUED)
Pin No.
Name
Symbol
Buffer
Type
# Pins
Description


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