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Related concepts
4.4.1 APB system configuration register summary
4.4.3
SYS_CFGCTRL Register
The SYS_CFGCTRL Register characteristics are:
Purpose
Controls write and read data transfer between the MCC and the SCC interface in the FPGA.
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
26
20
12
30 29
25
Start
nRead_Write
Reserved
DCC
Function
19 18 17
Site
16 15
Position
11
Device
Figure 4-18 SYS_CFGCTRL Register bit assignments
The following table shows the bit assignments.
Table 4-21 SYSCFG_CTRL Register bit assignments
Bits
Name
Function
[31]
Start
Writing to this bit generates an interrupt.
[30]
nRead_Write
0b0
Read access.
0b1
Write access.
[29:26]
DCC
4-bit number that selects the Daughterboard
Configuration Controller on the daughterboard. For
example:
0x0
Selects DCC 0.
0x1
Selects DCC 1.
[25:20]
Function
6-bit value that defines the function of the
daughterboard device that the transaction writes to or
reads from. These bits support the following
functions:
0b000001
Clock generator.
0b000100
Temperature.
0b000101
Daughterboard reset register.
0b000110
SCC configuration register.
0b001000
Shut down system.
0b001001
Reboot system.
[19:18]
-
Reserved. If you write to this register, you must write
all zeros to these bits. If you read this register, you
must ignore these bits.
4 Programmers Model
4.4 APB system configuration registers
ARM 100114_0200_03_en
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