lan9311 Standard Microsystems Corp., lan9311 Datasheet - Page 188

• Manufacturer Part Number: lan9311
• Description: Lan9311/lan9311i Two Port 10/100 Managed Ethernet Switch With 16-bit Non-pci Cpu Interface
• Manufacturer: Standard Microsystems Corp.

Revision 1.2 (04-08-08)
14.2.2.7
BITS
29:8
7:0
31
30
CSR Busy
When a 1 is written into this bit, the read or write operation is performed to
the specified Host MAC CSR. This bit will remain set until the operation is
complete. In the case of a read, this indicates that the host can read valid
data from the
Note:
R/nW
When set, this bit indicates that the host is requesting a read operation.
When clear, the host is performing a write.
0: Host MAC CSR Write Operation
1: Host MAC CSR Read Operation
RESERVED
CSR Address
The 8-bit value in this field selects which Host MAC CSR will be accessed
by the read or write operation. The index of each Host MAC CSR is defined
in
Section 14.3, "Host MAC Control and Status Registers," on page
Host MAC CSR Interface Command Register (MAC_CSR_CMD)
This read-write register is used to control the read and write operations to/from the Host MAC. This
register in used in conjunction with the
indirectly access the Host MAC CSR’s.
Note: The full list of Host MAC CSR’s are described in
The MAC_CSR_CMD and MAC_CSR_DATA registers must not be
modified until this bit is cleared.
Registers," on page
MAC," on page
Offset:
Host MAC CSR Interface Data Register
113.
0A4h
DESCRIPTION
272. For more information on the Host MAC, refer to
DATASHEET
Host MAC CSR Interface Data Register (MAC_CSR_DATA)
188
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Size:
(MAC_CSR_DATA).
Section 14.3, "Host MAC Control and Status
32 bits
272.
TYPE
R/W
R/W
R/W
RO
SMSC LAN9311/LAN9311i
SC
Chapter 9, "Host
DEFAULT
00h
Datasheet
0b
0b
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