lan9312 Standard Microsystems Corp., lan9312 Datasheet - Page 235

• Manufacturer Part Number: lan9312
• Description: Lan9312 High Performance Two Port 10/100 Managed Ethernet Switch With 32-bit Non-pci Cpu Interface
• Manufacturer: Standard Microsystems Corp.

High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9312
14.2.6.4
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 R/nW bit in the
Fabric CSR Interface Command Register
set, the data is from the switch fabric. If R/nW is cleared, the data is the
value that was last written into this register.
Switch Fabric CSR Interface Data Register (SWITCH_CSR_DATA)
This read/write register is used in conjunction with the
(SWITCH_CSR_CMD)
Section 14.5, "Switch Fabric Control and Status Registers," on page 308
indirectly accessible via this register.
Switch Fabric CSR Interface Command Register
Offset:
to perform read and write operations with the Switch Fabric CSR’s. Refer to
1ACh
DESCRIPTION
DATASHEET
(SWITCH_CSR_CMD). If R/nW is
CSR Address (CSR_ADDR[15:0])
235
Size:
Switch Fabric CSR Interface Command Register
32 bits
Switch
for details on the registers
TYPE
R/W
Revision 1.2 (04-08-08)
00000000h
DEFAULT