LAN9313 Datasheet, PDF (109/398 Pages) SMSC Corporation – Three Port 10/100 Managed Ethernet Switch with MII

Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
Table 8.5 Microwire Command Set for 9 Address Bits (continued)
INST
EWEN
READ
WRITE
WRAL
START
BIT OPCODE
1
00
1
10
1
01
1
00
ADDRESS
11XXXXXXX
A8 A7 A6 A5 A4 A3 A2 A1 A0
A8 A7 A6 A5 A4 A3 A2 A1 A0
01XXXXXXX
DATA TO DATA FROM # OF
EEPROM EEPROM CLOCKS
-
Hi-Z
12
-
D7 - D0
20
D7 - D0 (RDY/~BSY)
20
D7 - D0 (RDY/~BSY)
20
Table 8.6 Microwire Command Set for 11 Address Bits
INST
START
BIT OPCODE
ADDRESS
DATA TO DATA FROM # OF
EEPROM EEPROM CLOCKS
ERASE
1
ERAL
1
EWDS
1
EWEN
1
READ
1
WRITE
1
WRAL
1
11
A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
-
(RDY/~BSY)
14
00
10XXXXXXXXX
-
(RDY/~BSY)
14
00
00XXXXXXXXX
-
Hi-Z
14
00
11XXXXXXXXX
-
Hi-Z
14
10
A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
-
D7 - D0
22
01
A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D7 - D0 (RDY/~BSY)
22
00
01XXXXXXXXX
D7 - D0 (RDY/~BSY)
22
8.2.3.2
ERASE (Erase Location)
If erase/write operations are enabled in the EEPROM, this command will erase the location selected
by the EPC_ADDRESS field of the EEPROM Command Register (E2P_CMD). The EPC_TIMEOUT
bit is set if the EEPROM does not respond within 30mS.
EECS
EECLK
EEDO
EEDI
1
1
1
Ax
A0
Figure 8.7 EEPROM ERASE Cycle
SMSC LAN9313/LAN9313i
109
DATASHEET
Revision 1.2 (04-08-08)