KSZ8864RMN Datasheet, PDF (84/112 Pages) Micrel Semiconductor – Integrated 4-Port 10/100 Managed Switch with Two MACs MII or RMII Interfaces

Micrel, Inc.
KSZ8864RMN
Address Name
Description
Register 223(0xDF): Port3 Control Register 2
7
Reserved
Reserved
1, Select Switch Port 3 MAC3 interface as MAC
6
Select Switch Port 3 MAC 3
SW3-MII interface mode
mode.
0, Select Switch Port 3 MAC3 interface as PHY
mode (default).
5-0
Reserved
N/A Do not change.
Register 239(0xEF): Test Register 3
7-0
Reserved
N/A Do not change.
Register 255(0xFF): Testing and Port 4 Control Register
7
Reserved
N/A Do not change.
1 = Invert the phase of SM4TXC clock input in RMII
mode, set this bit when connect SW4-RMII clock
6
Invert phase of SMTXC clock
input for SW4-RMII
mode to SW4-RMII normal mode for two devices
back to back connection at clock mode side of the
device only.
0 = normal phase if SM4TXC clock input
5-0
Reserved
N/A Do not change.
Mode
RO
R/W
RO
RO
RO
R/W
RO
Default
0
0
0x2C
0x32
0
0
000000
September 2011
84
M9999-092011-1.4