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LAN9215 датащи(PDF) 39 Page - SMSC Corporation

номер детали LAN9215
подробное описание детали  16-bit Non-PCI 10/100 Ethernet Controller with HP Auto-MDIX Support
PDF  144 Pages
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производитель  SMSC [SMSC Corporation]
домашняя страница  http://www.smsc.com
Logo SMSC - SMSC Corporation

LAN9215 датащи(HTML) 39 Page - SMSC Corporation

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16-bit Non-PCI 10/100 Ethernet Controller with HP Auto-MDIX Support
Datasheet
SMSC LAN9215
39
Revision 2.9 (03-01-12)
DATASHEET
READ (Read Location): This command will cause a read of the EEPROM location pointed to by EPC
Address (EPC_ADDR). The result of the read is available in the E2P_DATA register.
Figure 3.7 EEPROM READ Cycle
WRITE (Write Location): If erase/write operations are enabled in the EEPROM, this command will
cause the contents of the E2P_DATA register to be written to the EEPROM location selected by the
EPC Address field (EPC_ADDR). The EPC_TO bit is set if the EEPROM does not respond within
30ms.
Figure 3.8 EEPROM WRITE Cycle
WRAL (Write All): If erase/write operations are enabled in the EEPROM, this command will cause the
contents of the E2P_DATA register to be written to every EEPROM memory location. The EPC_TO bit
is set if the EEPROM does not respond within 30ms.
Figure 3.9 EEPROM WRAL Cycle
1
10
A6
EECS
EECLK
EEDIO (OUTPUT)
A0
D7
D0
EEDIO (INPUT)
t
CSL
0
EECLK
EEDIO (INPUT)
EEDIO (OUTPUT)
EECS
11
A6
A0
D7
D0
t
CSL
0
EECLK
EEDIO (INPUT)
EEDIO (OUTPUT)
EECS
1
D7
D0
0
01
t
CSL



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