bypass
Contains fields that control bypass for clocks derived from the Main PLL.
1: The clock is bypassed to boot_clk.
0: The clock is derived from the 5:1 active mux.
Module Instance | Base Address | Register Address |
---|---|---|
i_clk_mgr_mainpllgrp | 0xFFD04040 | 0xFFD04054 |
Offset: 0x14
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 |
|||||||||||||||
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Reserved |
fben RW 0x1 |
rfen RW 0x1 |
hmcpllref RW 0x1 |
s2fuser0 RW 0x1 |
noc RW 0x1 |
mpu RW 0x1 |
bypass Fields
Bit | Name | Description | Access | Reset |
---|---|---|---|---|
5 | fben | If set, the pll_main_fben_clk will be bypassed to the boot_clk. The pll_main_fben_clk is used to synchronously update the Numerator to the Main PLL. |
RW | 0x1 |
4 | rfen | If set, the pll_main_rfen_clk will be bypassed to the boot_clk. The pll_main_rfen_clk is used to synchronously update the Denominator to the Main PLL. |
RW | 0x1 |
3 | hmcpllref | If set, the hmc_pll_ref_clk will be bypassed to the boot_clk. |
RW | 0x1 |
2 | s2fuser0 | If set, the s2f_user0_clk will be bypassed to the boot_clk. |
RW | 0x1 |
1 | noc | If set, the NOC clock group will be bypassed to boot_clk. |
RW | 0x1 |
0 | mpu | If set, the MPU clock group will be bypassed to the boot_clk. |
RW | 0x1 |