LAN9730 Datasheet, PDF (93/222 Pages) SMSC Corporation – High-Speed Inter-Chip (HSIC) USB 2.0

LAN9730/LAN9730i
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 4-25:
EEPROM READ CYCLE
tCSL
EECS
EECLK
EEDIO (OUTPUT)
1
1
0
A6
A0
EEDIO (INPUT)
D7
D0
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 30 ms.
FIGURE 4-26:
EEPROM WRITE CYCLE
tCSL
EECS
EECLK
EEDIO (OUTPUT)
1
0
1
A6
A0
D7
D0
EEDIO (INPUT)
WRITE CYCLE
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DS00001946A-page 93