lan9303 Standard Microsystems Corp., lan9303 Datasheet - Page 120
lan9303
Manufacturer Part Number
lan9303
Description
Small Form Factor Three Port 10/100 Managed Ethernet Switch With Single Mii/rmii/turbo Mii
Manufacturer
Standard Microsystems Corp.
Datasheet
1.LAN9303.pdf
(366 pages)
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Revision 1.3 (08-27-09)
S
S
A
6
S
A
5
Control Byte
S
A
4
S
A
3
S
S
A
2
register is not affected. Multiple registers may be written in a multiple write cycle, each one being
written after 32-bits. I
Figure 8.10
S
A
S
A
6
1
S
A
S
A
5
0
Control Byte
S
A
4
0
S
A
3
A
C
K
S
A
2
A
9
illustrates a typical single and multiple register write.
S
A
1
Address Byte
A
8
S
A
A
0
7
A
0
6
A
C
K
A
5
A
9
A
4
2
C writes must not be performed to unused register addresses.
A
8
A
3
Address Byte
A
7
A
2
A
6
A
C
K
Figure 8.10 I
Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII
A
D
5
3
1
Data 1 Byte
A
D
4
3
0
.. .
A
3
DATASHEET
Multiple Register Writes
A
2
Single Register Write
C
A
K
D
2
5
D
3
1
D
2
4
2
120
D
A
C
K
3
0
C Slave Writes
Data Byte
.. .
D
2
9
...Data m Byte
D
2
8
S
D
2
7
5
D
D
2
6
4
D
2
5
D
3
D
2
4
D
2
A
C
K
D
1
D
D
2
3
0
Data Byte...
D
A
C
K
2
2
D
D
2
1
3
1
Data m+1 Byte...
D
D
2
0
3
0
.. .
D
2
9
D
2
8
...Data Byte
D
5
D
2
7
D
D
4
2
6
D
D
3
2
5
SMSC LAN9303/LAN9303i
.. .
D
2
D
1
...Data n Byte
D
0
D
5
A
C
K
D
4
P
D
3
D
2
Datasheet
D
1
D
0
C
A
K
P
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