zl50409 Zarlink Semiconductor, zl50409 Datasheet - Page 103

• Manufacturer Part Number: zl50409
• Description: Managed 9-port 10/100m Ethernet Switch
• Manufacturer: Zarlink Semiconductor

Note : Before programming MII command: set FEN[6], check MIIC3, making sure no RDY and no VALID; then
program MII command.
12.3.7.6
CPU Address:h605
Accessed by CPU (R/W)
Note : Before programming MII command: set FEN[6], check MIIC3, making sure no RDY and no VALID; then
program MII command.
12.3.7.7
CPU Address:h606
Accessed by CPU (R/W)
Note : Before programming MII command: set FEN[6], check MIIC3, making sure no RDY and no VALID; then
program MII command. Writing this register will initiate a serial management cycle to the MII management
interface.
12.3.7.8
CPU Address:h607
Accessed by CPU (RO)
12.3.7.9
CPU Address:h608
Accessed by CPU (RO)
Bits [4:0]
Bit [5]
Bit [6]
Bit [7]
Bits [7:0]:
Bits [7:0]:
Bits [4:0]
Bits [6:5]
Bits [7]
MIIC2 – MII Command Register 2
MIIC3 – MII Command Register 3
MIID0 – MII Data Register 0
MIID1 – MII Data Register 1
MII Data [15:8]
PHY_AD – 5 Bit PHY Address
Reserved
VALID – Data Valid from PHY (Read Only)
RDY – Data is returned from PHY (Read Only)
REG_AD – Register PHY Address
OP – Operation code “10” for read command and “01” for write command
Reserved
MII Data [7:0]
Zarlink Semiconductor Inc.
ZL50409
103
Data Sheet