lan9303 Standard Microsystems Corp., lan9303 Datasheet - Page 158

• 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.

Revision 1.3 (08-27-09)
13.2.4.4
BITS
31:0
Switch CSR Data (CSR_DATA)
This field contains the value read from or written to the Switch Fabric CSR.
The Switch Fabric CSR is selected via the
bits of the
(SWITCH_CSR_CMD).
Upon a read, the value returned depends on the
the
If
(R_nW)
register.
Read/Write (R_nW)
Switch Fabric CSR Interface Data Register (SWITCH_CSR_DATA)
This read/write register is used in conjunction with the
(SWITCH_CSR_CMD)
Section 13.4, "Switch Fabric Control and Status Registers," on page 212
indirectly accessible via this register.
Switch Fabric CSR Interface Command Register
is cleared, the data is the value that was last written into this
Switch Fabric CSR Interface Command Register
Offset:
is set, the data is from the switch fabric. If
to perform read and write operations with the Switch Fabric CSR’s. Refer to
1ACh
DESCRIPTION
Small Form Factor Three Port 10/100 Managed Ethernet Switch with Single MII/RMII/Turbo MII
DATASHEET
CSR Address (CSR_ADDR[15:0])
158
Read/Write (R_nW)
Size:
(SWITCH_CSR_CMD).
Switch Fabric CSR Interface Command Register
Read/Write
32 bits
bit in
for details on the registers
TYPE
R/W
SMSC LAN9303/LAN9303i
00000000h
DEFAULT
Datasheet