Data Sheet

Programming Interface — Ethernet Controller I210
583
8.27.5.4 PRBS Error Counter LSB- Page 26, Register 24
8.27.5.5 PRBS Error Counter MSB- Page 26, Register 25
8.27.5.6 Fiber Specific Control Register 2 - Page 26, Register 26
3:2 Pattern Select R/W 00 Retain
00b = PRBS 7.
01b = PRBS 23.
10b = PRBS 31.
11b = Generate 1010101010... pattern.
1
PRBS Checker
Enable
R/W 0x0 0x0
0b = Disable.
1b = Enable.
0
PRBS Generator
Enable
R/W 0x0 0x0
0b = Disable.
1b = Enable.
Bits Field Mode HW Rst SW Rst Description
15:0
PRBS Error Count
LSB
RO 0x0 Retain
A read to this register freezes register 25_26. Cleared only when
register 23_26.4 is set to 0b.
Bits Field Mode HW Rst SW Rst Description
15:0
PRBS Error Count
MSB
RO 0x0 Retain
This register does not update unless register 24_26 is read first.
Cleared only when register 23_26.4 is set to 1b.
Bits Field Mode HW Rst SW Rst Description
15:3 Reserved R/W 0x0 Update Must be set to 0x0.
2:0 Output Amplitude R/W 0x2 Retain
Differential voltage peak measured.
The latest event that occurs between the register write and pin
control determines the current output amplitude setting.
000b = 14 mV.
001b = 112 mV.
010b = 210 mV.
011b = 308 mV.
100b = 406 mV.
101b = 504 mV.
110b = 602 mV.
111b = 700 mV.