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LAN9252/ML 数据表(PDF) 233 Page - Microchip Technology

部件名 LAN9252/ML
功能描述  2/3-Port EtherCAT® Slave Controller with Integrated Ethernet PHYs
PDF  329 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

LAN9252/ML 数据表(HTML) 233 Page - Microchip Technology

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 2015 Microchip Technology Inc.
DS00001909A-page 233
LAN9252
12.14.12 WRITE REGISTER PROTECTION REGISTER
12.14.13 ESC WRITE REGISTER ENABLE REGISTER
Offset:
0021h
Size:
8 bits
Bits
Description
ECAT
Type
PDI
Type
Default
7:1
RESERVED
Write 0.
RO
RO
0000000b
0
Write Register Protection
0:
Protection disabled
1:
Protection enabled
Note:
Registers 0000h-0F0Fh are write protected, except
for 0030h.
R/W
RO
0b
Offset:
0030h
Size:
8 bits
Bits
Description
ECAT
Type
PDI
Type
Default
7:1
RESERVED
Write 0.
RO
RO
0000000b
0
ESC Write Register Enable
If ESC write protection is enabled, this register must be written in
the same Ethernet frame (value is a don’t care) before other
writes to this station are allowed. ESC write protection is still
active after this frame (if the ESC Write Register Protection Reg-
ister is not changed)
R/W
RO
0b



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