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LAN89730 bảng dữ liệu(PDF) 139 Page - Microchip Technology

tên linh kiện LAN89730
Giải thích chi tiết về linh kiện  Implements Reduced Power Operating Modes
PDF  218 Pages
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
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LAN89730 bảng dữ liệu(HTML) 139 Page - Microchip Technology

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 2013-2015 Microchip Technology Inc.
DS60001348A-page 139
LAN89730
10
EPC Time-out
If an EEPROM operation is performed, and there is no response from the
EEPROM within 30 ms, the EEPROM controller will time-out and return to its
idle state. This bit is set when a time-out occurs, indicating that the last opera-
tion was unsuccessful.
Note:
If the EEDI pin is pulled-high (default if left unconnected), EPC
commands will not time out if the EEPROM device is missing. In this
case, the EPC Busy bit will be cleared as soon as the command
sequence is complete. It should also be noted that the ERASE,
ERAL, WRITE and WRAL commands are the only EPC commands
that will time-out if an EEPROM device is not present and the EEDI
signal is pulled low.
R/WC
0
9
Data Loaded
When set, this bit indicates that a valid EEPROM was found and that the USB
and Ethernet data programming has completed normally. This bit is set after a
successful load of the data after power-up or after a RELOAD command has
been completed.
R/WC
0
8:0
EPC Address
The 9-bit value in this field is used by the EEPROM Controller to address a
specific memory location in the Serial EEPROM. This is a byte-aligned
address.
R/W
00h
Bits
Description
Type
Default



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