User Manual 350 of 562 V 1.0
2021-08-25
XDPP1100 technical reference manual
Digital power controller
Central processing unit subsystem
Register name Field name
Access Address
Bits
Description
generates a default clock frequency
of pmbus_kernel_clk = alpha_clk/1.
KRN_CLK_DIV_
CTRL
otp_kernel_clk_div RW
4000_2008h [29:25] This register configures the divider
of the OTP kernel clock. The divide
ratio is equal to
otp_kernel_clk_div[4:0] + 1. For
example, the reset setting
otp_kernel_clk_div[4:0] = 0
generates a default clock frequency
of otp_kernel_clk = alpha_clk/1.
CLKOUT_CTRL clkout_mux
RW
4000_200Ch [3:0]
Function not in use.
CLKOUT_CTRL clkout_mux_div
RW
4000_200Ch [7:4]
Function not in use.
CLKOUT_CTRL clkout_g
RW
4000_200Ch [8]
Function not in use.
CLK_EN_CTRL hosc_clk_g
RW
4000_2010h [0]
Enable bit for the clock hosc_clk if
the hosc_clk primary clock gating
control has been enabled.
Note: The primary clock gating is
performed if this bit is set.
The KILL_ME_SOFTLY bit of the
HOSC_SW_CLK_GATING_CTRL
register is also set. Make sure to
enable an external wakeup source
before executing the primary clock
gating procedure (i.e., entering the
hibernate state) in order to avoid
permanent loss of the CPUS clock.
0: Clock
“
hosc_clk
”
is off only if
hosc_clk clock gating control has
been enabled
1: Clock
“
hosc_clk
”
is live
CLK_EN_CTRL rom_clk_g
RW
4000_2010h [1]
Enable bit for the clock rom_clk.
0: Clock
“
rom_clk
”
is off
1: Clock
“
rom_clk
”
is live
CLK_EN_CTRL ram1_clk_g
RW
4000_2010h [2]
Enable bit for the clock ram1_clk.
0: Clock
“
ram1_clk
”
is off
1: Clock
“
ram1_clk
”
is live
CLK_EN_CTRL ram2_clk_g
RW
4000_2010h [3]
Enable bit for the clock ram2_clk.
0: Clock
“
ram2_clk
”
is off
1: Clock
“
ram2_clk
”
is live
CLK_EN_CTRL amba_clk_g
RW
4000_2010h [4]
Enable bit for the clock amba_clk.
0: Clock
“
amba_clk
”
is off
1: Clock
“
amba_clk
”
is live
CLK_EN_CTRL dma_clk_g
RW
4000_2010h [5]
Enable bit for the clock dma_clk.
0: Clock
“
dma_clk
”
is off