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ManualsBrandsMicrochip ManualsIntegrated Circuits (ICs)3-Port Managed Ethernet Switch Ethernet/Fiber/MAC/PHY/MII LQFP-64
61626364656667686970
KSZ8873MLL/FLL/RLL
DS00002348A-page 64 2017 Microchip Technology Inc.
6 Reserved RO
Reserved
Do not change the default values.
0
5-0 Reserved RO
Reserved
Do not change the default values.
0x18
Register 172 (0xAC): PM Usage Flow Control Select Mode 2
7-6 Reserved RO
Reserved
Do not change the default values.
0
5-0 Reserved RO
Reserved
Do not change the default values.
0x10
Register 173 (0xAD): PM Usage Flow Control Select Mode 3
7-6 Reserved RO
Reserved
Do not change the default values.
0
5-0 Reserved RO
Reserved
Do not change the default values.
0x08
Register 174 (0xAE): PM Usage Flow Control Select Mode 4
7-4 Reserved RO
Reserved
Do not change the default values.
0
3-0 Reserved RO
Reserved
Do not change the default values.
0x05
Register 175 (0xAF): TXQ Split for Q3 in Port 1
7 Priority Select R/W
0 = enable straight priority with Reg 176/177/178
bits[7]=0 and Reg 5 bit[3]=0 for higher priority first
1 = priority ratio is 8:4:2:1 for 4 queues and 2:1 for 2
queues with Reg 176/177/178 bits[7]=1.
1
6-0 Reserved RO
Reserved
Do not change the default values.
8
Register 176 (0xB0): TXQ Split for Q2 in Port 1
7 Priority Select R/W
0 = enable straight priority with Reg 175/177/178
bits[7]=0 and Reg 5 bit[3]=0 for higher priority first
1 = priority ratio is 8:4:2:1 for 4 queues and 2:1 for 2
queues with Reg 175/177/178 bits[7]=1.
1
6-0 Reserved RO
Reserved
Do not change the default values.
4
Register 177 (0xB1): TXQ Split for Q1 in Port 1
7 Priority Select R/W
0 = enable straight priority with Reg 175/176/178
bits[7]=0 and Reg 5 bit[3]=0 for higher priority first
1 = priority ratio is 8:4:2:1 for 4 queues and 2:1 for 2
queues with Reg 175/176/178 bits[7]=1.
1
6-0 Reserved RO
Reserved
Do not change the default values.
2
Register 178 (0xB2): TXQ Split for Q0 in Port 1
7 Priority Select R/W
0 = enable straight priority with Reg 175/176/177
bits[7]=0 and Reg 5 bit[3]=0 for higher priority first
1 = priority ratio is 8:4:2:1 for 4 queues and 2:1 for 2
queues with Reg 175/176/177 bits[7]=1.
1
6-0 Reserved RO
Reserved
Do not change the default values.
1
TABLE 4-9: ADVANCED CONTROL REGISTERS (REGISTERS 96-198) (CONTINUED)
Bit Name R/W Description Default