
nTRST
This resets the CoreSight DAP and the TAP controllers inside the Juno r2 SoC.
CFG_nRST
This is the reset signal for the serial interface to the SCC registers in the Juno r2 SoC. It resets the SCC
registers to their default values. It also resets the IOFPGA peripherals and the clock generators on the
V2M-Juno r2 motherboard.
2.6.3
Reset sequence
The following figure shows the reset and configuration timing sequence.
MCC
reset
MCC
config
nPBRESET
Hard Reset
ON/OFF
Soft Reset
CB_VRAMP
All
PSUs
ON
MB
IOFPGA
OSCCLKs
SCCs
DB
FPGAs
OSCCLKs
SCCs
SCP
boot
IOFPGA_nRST
CFG_nRST
CB_nPOR
(nPORESET)
CB_nRST
CB_nTRST
ADP
boot
System
running
Warm
reset
ATXON
CB_CFGnRST
DCC
config
Figure 2-7 V2M-Juno r2 motherboard reset and configuration timing cycle
2 Hardware Description
2.6 Resets
ARM 100114_0200_03_en
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