vcocalib
VCO calibration control registers.
Module Instance | Base Address | Register Address |
---|---|---|
i_clk_mgr_mainpllgrp | 0xFFD10030 | 0xFFD1008C |
Size: 32
Offset: 0x5C
Access: RW
Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.
Bit Fields | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
Reserved |
termin RW 0x0 |
Reserved |
mscnt RW 0x4 |
||||||||||||
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
mscnt RW 0x4 |
Reserved |
hscnt RW 0xB7 |
vcocalib Fields
Bit | Name | Description | Access | Reset |
---|---|---|---|---|
24:23 | termin |
Termination Calibration Control Look-Up Table Select |
RW | 0x0 |
16:9 | mscnt |
mscnt = 200/(fvco/fref). It can be only set while the PLL is at reset or power down state. It cannot be switched dynamically. |
RW | 0x4 |
7:0 | hscnt |
VCO calibration parameter. hscnt= (mdiv+ 6) * mscnt/ refdiv-9. It can be only set while the pll is at reset or power down state. It cannot be switched dynamically. |
RW | 0xB7 |