Datasheet
2016-2017 Microchip Technology Inc. DS00002112B-page 67
KSZ8795CLX
Registers 128 and 129 can be used to map from 802.1p priority field 0 - 7 to the switch’s four priority queues 0 - 3. 0x3
is the highest priority queues as Priority 3 and 0x0 is the lowest priority queues as Priority 0.
Register 125 (0x7D): Interrupt Mask Register
7 - 5 Reserved N/A Don’t Change. RO 000
4PME
Interrupt
Mask
1 = Enable PME interrupt.
0 = Normal
R/W 0
3 Port 4
Interrupt
Mask
1 = Enable Port 4 interrupt.
0 = Normal
R/W 0
2 Port 3
Interrupt
Mask
1 = Enable Port 3 interrupt.
0 = Normal
R/W 0
1 Port 2
Interrupt
Mask
1 = Enable Port 2 interrupt.
0 = Normal
R/W 0
0 Port 1
Interrupt
Mask
1 = Enable Port 1 interrupt.
0 = Normal
R/W 0
Register 126 (0x7E): ACL Interrupt Status Register
7 - 5 Reserved N/A Don’t Change. RO 000
4 - 0 ACL_INT_
STATUS
ACL Interrupt Status, one bit per port
1 = ACL interrupt detected.
0 = No ACL interrupt detected.
RO 00000
Register 127 (0x7F): ACL Interrupt Control Register
7 - 5 Reserved N/A Don’t Change. RO 000
4 - 0 ACL_INT_
ENABLE
ACL Interrupt Enable, one bit per port
1 = ACL interrupt enabled.
0 = ACL interrupt disabled.
R/W 00000
TABLE 4-9: ADVANCED CONTROL REGISTERS 128 - 129
Address Name Description Mode Default
Register 128 (0x80): Global Control 12
7 - 6 Tag_0x3 IEEE 802.1p mapping. The value in this field is
used as the frame’s priority when its IEEE 802.1p
tag has a value of 0x3.
R/W 0x1
5 - 4 Tag_0x2 IEEE 802.1p mapping. The value in this field is
used as the frame’s priority when its IEEE 802.1p
tag has a value of 0x2.
R/W 0x1
3 - 2 Tag_0x1 IEEE 802.1p mapping. The value in this field is
used as the frame’s priority when its IEEE 802.1p
tag has a value of 0x1.
R/W 0x0
1 - 0 Tag_0x0 IEEE 802.1p mapping. The value in this field is
used as the frame’s priority when its IEEE 802.1p
tag has a value of 0x0.
R/W 0x0
Register 129 (0x81): Global Control 13
7 - 6 Tag_0x7 IEEE 802.1p mapping. The value in this field is
used as the frame’s priority when its IEEE 802.1p
tag has a value of 0x7.
R/W 0x3
TABLE 4-8: ADVANCED CONTROL REGISTERS 160, 124 - 127 (CONTINUED)
Address Name Description Mode Default