Datasheet

KSZ8863MLL/FLL/RLL
DS00002335B-page 44  2017 Microchip Technology Inc.
Register 7 (0x07): Global Control 5
7-0
Broadcast Storm
Protection Rate
Bit [7:0]
R/W
This register along with the previous register deter-
mines how many “64 byte blocks” of packet data are
allowed on an input port in a preset period. The period
is 67 ms for 100BT or 500 ms for 10BT. The default is
1%.
Note: 100BT Rate: 148,800 frames/sec * 67 ms/inter-
val * 1% = 99 frames/interval (approx.) = 0x63
0x63
Register 8 (0x08): Global Control 6
7-0 Factory Testing RO
Reserved
Do not change the default values.
0x00
Register 9 (0x09): Global Control 7
7-0 Factory Testing RO
Reserved
Do not change the default values.
0x24
Register 10 (0x0A): Global Control 8
7-0 Factory Testing RO
Reserved
Do not change the default values.
0x35
Register 11 (0x0B): Global Control 9
7-6
CPU interface Clock
Selection
R/W
00 = 31.25 MHz supports SPI speed below 6 MHz
01 = 62.5 MHz supports SPI speed between 6 MHz to
12.5 MHz
10 = 125 MHz supports SPI speed above 12.5 MHz
Note: Lower clock speed will save more power con-
sumption, It is better set to 31.25 MHz if SPI doesn’t
request a high speed.
10
5-4 Reserved RO N/A Don’t Change 00
3-2 Reserved RO N/A Don’t Change 10
1 Reserved RO N/A Don’t Change 0
0 Reserved RO N/A Don’t Change 0
Register 12 (0x0C): Global Control 10
7-6 Tag_0x3 R/W
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.
01
5-4 Tag_0x2 R/W
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.
01
3-2 Tag_0x1 R/W
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.
00
1-0 Tag_0x0 R/W
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.
00
Register 13 (0x0D): Global Control 11
7-6 Tag_0x7 R/W
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.
11
5-4 Tag_0x6 R/W
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 0x6.
11
TABLE 4-6: GLOBAL REGISTERS (0-15) (CONTINUED)
Bit Name R/W Description Default