KSZ8795CLX
TABLE 4-13: ADDITIONAL ADVANCED CONTROL REGISTERS (Note 4-1) (CONTINUED)
Address
Name
Description
Mode
Default
6 - 0
Port Queue 2 Egress Data Rate Limit For Priority 2 Frames
Egress Limit Egress traffic from this port is shaped according to
the Table 18 in “Rate Limiting Support” sub-section.
In four queues mode, it is high/low priority.
R/W
0000000
Register 190 (0xBE): Port 1 Queue 3 Egress Limit Control 4
Register 206 (0xCE): Port 2 Queue 3 Egress Limit Control 4
Register 222 (0xDE): Port 3 Queue 3 Egress Limit Control 4
Register 238 (0xEE): Port 4 Queue 3 Egress Limit Control 4
Register 254 (0xFE): Port 5 Queue 3 Egress Limit Control 4
7
Reserved
—
RO
0
6 - 0
Port Queue 3 Egress Data Rate Limit For Priority 3 Frames
Egress Limit Egress traffic from this port is shaped according to
the Table 18 in “Rate Limiting Support” sub-section.
In four queues mode, it is highest priority.
R/W
0000000
Note 4-1
In the port priority 0 - 3 ingress rate limit mode, it is necessary to set all related egress ports to two
queues or four queues mode.
In the port queue 0 - 3 egress rate limit mode, the highest priority get exact rate limit based on the
rate select table, other priorities packets rate are based upon the ratio of the Port Control 14/15/16/
17 Registers when using more than one egress queue per port.
TABLE 4-14: ADVANCED CONTROL REGISTERS 191 - 255
Address Name Description
Register 191 (0xBF): Testing Register
7 - 0 Reserved N/A Don’t Change.
Register 207 (0xCF): Reserved Control Register
7 - 0 Reserved N/A Don’t Change.
Register 223 (0xDF): Test Register 2
7 - 0 Reserved N/A Don’t Change.
Register 239 (0xEF): Test Register 3
7 - 0 Reserved N/A Don’t Change.
Register 255 (0xFF): Testing Register 4
7 - 0 Reserved N/A Don’t Change.
Mode
Default
RO
RO
RO
RO
RO
0x80
0x15
0x0C
0x32
0x00
TABLE 4-15: INDIRECT REGISTER DESCRIPTIONS
Control
Indirect Address
Contents
Direct Address 0x6E,
Function Select Bits[7-5] = 000,
Table_select Bits[3-2] = 00
0x000 – 0x01F
0x000 – 0x1FF
0x000 – 0x1FF
Static MAC address table entry 0 – 31
Direct Address 0x6E,
Function Select Bits[7-5] = 000,
Table_select Bits[3-2] = 01
VLAN table bucket 0 – 1023 (4 entries
per bucket)
Direct Address 0x6E,
Function Select Bits[7-5] = 000,
Table_select Bits[3-2] = 10
Dynamic MAC address table entry 0 –
1023
DS00002112A-page 78
2016 Microchip Technology Inc.
MICREL [ MICREL SEMICONDUCTOR ]
