pllc0
Channel C0 frequency settings for the main PLL
Module Instance | Base Address | Register Address |
---|---|---|
i_clk_mgr_mainpllgrp | 0xFFD10024 | 0xFFD10058 |
Size: 32
Offset: 0x34
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 |
stat RO 0x0 |
mute RW 0x0 |
en RW 0x0 |
bypas RW 0x0 |
Reserved |
||||||||||
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Reserved |
div RW 0x3 |
pllc0 Fields
Bit | Name | Description | Access | Reset | ||||||
---|---|---|---|---|---|---|---|---|---|---|
29 | stat |
HP PLL state transition status for clk_slice_0. 1—Completed 0—In transition Once state transition excluding disconnect state transition, for example power state, phase change and divider change transition, is requested, status will be de-asserted to indicate state transition is underway. Once the state transition is completed, status will be asserted.
|
RO | 0x0 | ||||||
28 | mute |
Mutes PLL clock_slice_0 outputs without any glitch: 1—Output clocks are muted to 1’b0 0—Output clocks are active HP PLL clock slice output will be automatically muted if the HP PLL IP is in PD, and in Ready state if HP PLL IP loses lock.
|
RW | 0x0 | ||||||
27 | en |
PLL channel 0 output enable; HP PLL clk_slice_0 enable control. 1—Enable 0—Disable As long as one of the clock slices is enabled, the HP PLL IP will be powered up.
|
RW | 0x0 | ||||||
26 | bypas |
PLL channel 0 output bypass. Before lock, it is muted, regardless of its value. After lock, if enabled (en==1) and bypass=1, this outputs refclk.
|
RW | 0x0 | ||||||
10:0 | div |
The ock_pll_clkslice_0 divider ratio in binary code. In source-synchronous mode, ictl_pll_clkslice_0_div_[10:0] can be dynamically updated when PLL is in Ready state or in PD state. In both cases, the change must happen synchronous to the rising edge of ick_pll_ctrl. In asynchronous mode, it can only be updated in PD state. By default, this pin operates in source-synchronous mode. (Can be dynamically updated after lock signal is asserted, glitch-free from 8'd3 to 8'd255; could encounter glitches for 8'd1 and 8d'2 cases. ) |
RW | 0x3 |