Usage constraints
Bits[20:16] are read-only. Bits[4:0] are read/write.
Configurations
Available in all N1 board configurations.
Memory offset and full register reset value
See
4.5.1 Serial Configuration Control registers summary
The following table shows the PMCLK_DIV Register bit assignments.
Table 4-33 PMCLK_DIV Register bit assignments
Bits
Name
Type
Function
[31:21] -
-
Reserved.
[20:16] CLKDIV_CUR
RO
Current clock divider value.
Division value=CLK1.
Reset value
0b00001
, division value=2.
[15:5]
-
-
Reserved.
[4:0]
CLKDIV
RW
Sets clock division value.
Division value=CLK1.
Reset value
0b00001
, division value=2.
Note
The example values in this register, and the clock frequency they generate, are part of a clock
configuration which enables correct operation of the N1 SoC. Further SoC testing and measurement, by
Arm or by other developers, might result in new register values.
4.5.3
SYSAPBCLK_CTRL Register
The SYSAPBCLK_CTRL Register characteristics are:
Purpose
Selects source for clock
SYSAPBCLK
.
Usage constraints
Bits[11:8] are read-only. Bits[3:0] are read/write.
Configurations
Available in all N1 board configurations.
Memory offset and full register reset value
See
4.5.1 Serial Configuration Control registers summary
4 Programmers model
4.5 Serial Configuration Control registers
101489_0000_02_en
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