Miscellaneous registers (Misc)
RM0082
224/844
Doc ID 018672 Rev 1
[22:20]
pll1_clk_sel
3’h0
Main PLL1 source clock configuration table
Control
Bit
Description
3’b000
24 MHz Oscillator (default mode)
3’b001
Programmable PL_CLK (4) signal.
3’b01X
Reserved for future use.
3’b1XX
Reserved for future use.
[19]
mem_dll_lock
-
Memory DLL lock; this field reflects the current value of
memory controller DLL lock signal (RO):
1’b0: DLL unlock status (for interrupt capability ref.
SYSERR_CFG_CTR register description).
1’b1: DLL active lock.
[18]
usb_pll_lock
-
USB PLL3 llock; this field reflects the current value of
USB PLL3 llock signal (RO):
1’b0: USB PLL3 unlock status (for interrupt capability ref.
SYSERR_CFG_CTR register description).
1’b1: PLL3 active lock.
[17]
sys_pll2_lock
-
Auxillary System PLL2 lock; this field reflects the current
value of System PLL2 lock signal (RO):
1’b0: PLL2 unlock status (for interrupt capability ref.
SYSERR_CFG_CTR register description).
1’b1: Pll2 active lock.
This field should be ignored when PLL2 is programmed
in dithering mode.
[16]
sys_pll1_lock
-
Main System PLL1 lock; this field reflects the current
value of the System PLL1 lock signal (RO):
1’b0: PLL1 unlock status (for interrupt capability ref.
SYSERR_CFG_CTR register description).
1’b1: Pll1 active lock.
This field should be ignored when PLL1is programmed in
dithering mode.
[15:03]
RFU
-
Reserved for future use (Write don’t care - Read return
zeros).
[02]
pll3_enb_clkout
1’h0
Enable USB PLL3 clock output probing; this functionality
is used to check the internal PLL3 clock integrity:
1’b0: Disable clock probing (normal mode).
1’b1: PLL3 clock out (48 MHz) multiplexed on
basGPIO(2) signal.
Table 163.
PLL_CLK_CFG register bit assignments (continued)
PLL_CLK_CFG Register
0x020
Bit
Name
Reset
Value
Description