Data Sheet

Programming Interface — Ethernet Controller I210
585
8.27.5.9 Voltage Regulator Control - Page 26, Register 30
Bits Field Mode HW Rst SW Rst Description
15:7 Reserved R/W 0x0 Retain 0x0.
6:3
scr09 Output
Voltage Select
R/W Retain
The latest event that occurs between the register write and pin
control determines the current output amplitude setting.
0000b = 0.70V
0001b = 0.725V
0010b = 0.75V
0011b = 0.775V
0100b = 0.80V
0101b = 0.825V
0110b = 0.85V
0111b = 0.875V
1000b = 0.90V (default)
1001b = 0.925V (not recommended)
1010b = 0.95V (not recommended)
1011b = 0.975V (not recommended)
1100b = 1.00V (not recommended)
1101b = 1.025V (not recommended)
1110b = 1.05V (not recommended)
1111b = 1.075V (not recommended)
2:0
scr15 Output
Voltage Select
R/W Retain
The latest event that occurs between the register write and pin
control determines the current output amplitude setting.
000b = 1.35V.
001b = 1.40V.
010b = 1.45V.
011b = 1.50V, default.
100b to 111b= Reserved.