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4.4
APB system configuration registers
The IOFPGA contains the APB system configuration registers.
This section contains the following subsections:
•
4.4.1 APB system configuration register summary
•
•
•
4.4.1
APB system configuration register summary
The base memory address of the APB system configuration registers is
0x1C010000
.
The following table shows the registers in address offset order from the base memory address.
Table 4-19 V2M-Juno r2 motherboard APB system configuration register summary
Offset
Name
Type
Reset
Width
Description
0x00A0
SYS_CFGDATA
RW
0x00000000
32
.
0x00A4
SYS_CFGCTRL
RW
0x00000000
32
.
0x00A8
SYS_CFGSTAT
RW
0x00000000
32
.
4.4.2
SYS_CFGDATA Register
The SYS_CFGDATA_OUT Register characteristics are:
Purpose
The application software in the Juno r2 SoC writes data to the SYS_CFGDATA Register during
a write operation. This data represents a value or function that the write operation sends to the
addressed component, for example the frequency value of a clock generator.
The MCC or Daughterboard Configuration Controller writes return data to the SYS_CFGDATA
Register during a read operation. This data represents a value or function that the read operation
receives from the addressed component, for example the frequency value of a clock generator.
Usage constraints
There are no usage constraints.
Configurations
Available in all V2M-Juno r2 motherboard configurations.
The following figure shows the bit assignments.
31
0
SYS_CFGDATA
Figure 4-17 SYS_CFGDATA_OUT Register bit assignments
The following table shows the bit assignments.
Table 4-20 SYS_CFGDATA_OUT Register bit assignments
Bits
Name
Function
[31:0]
SYS_CFGDATA
Write-data or read-data.
4 Programmers Model
4.4 APB system configuration registers
ARM 100114_0200_03_en
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