15 |
INPIN_IGNORE |
R/W |
1h |
Ignore SYNC and SysRefReq pins when VCO_PHASE_SYNC = 0. This bit should be set to 1 unless VCO_PHASE_SYNC = 1. |
14 |
INPIN_HYST |
R/W |
0h |
Enables high hysteresis for LVDS input to SysRefReq and SYNC pin.
0: Disabled
1: Enabled |
13 - 12 |
INPIN_LVL |
R/W |
0h |
Sets bias level for LVDS input to SysRefReq and SYNC pin.
0: Vin / 4
1: Vin
2: Vin / 2
3: Invalid |
11 - 9 |
INPIN_FMT |
R/W |
0h |
Defines the input format of SysRefReq and SYNC pin.
0: SYNC = SysRefReq = CMOS
1: SYNC = LVDS; SysRefReq = CMOS
2: SYNC = CMOS; SysRefReq = LVDS
3: SYNC = SysRefReq = LVDS
4: SYNC = SysRefReq = CMOS
5: SYNC = LVDS (filtered); SysRefReq = CMOS
6: SYNC = CMOS; SysRefReq = LVDS (filtered)
7: SYNC = SysRefReq = LVDS (filtered) |
8 - 0 |
|
R/W |
1h |
Program 1h to this field. |