Specifications

The POR circuitry checks the functionality of the I/O level shifters powered by the V
CCPD
and V
CCPGM
power supplies during power-up mode. The main POR circuitry waits for all the individual POR circuitries
to release the POR signal before allowing the control block to start programming the device.
Figure 10-5: Simplified POR Diagram for Cyclone V Devices
V
CC
PORV
CC
V
CC_AUX
POR
Modular
Main POR
Main POR
V
CC_AUX
V
CCPD
V
CCPGM
Related Information
Cyclone V Device Datasheet
Provides more information about the POR delay specification and t
RAMP
.
Power Supplies Monitored and Not Monitored by the POR Circuitry
Table 10-2: Power Supplies Monitored and Not Monitored by the Cyclone V POR Circuitry
Power Supplies Not MonitoredPower Supplies Monitored
• V
CCE_GXBL
• V
CCH_GXBL
• V
CCL_GXBL
• V
CCA_FPLL
• V
CCIO
• V
CCIO_HPS
• V
CCPLL_HPS
• V
CC_AUX
• V
CCBAT
• V
CC
• V
CCPD
• V
CCPGM
• V
CC_HPS
• V
CCPD_HPS
• V
CCRSTCLK_HPS
For the device to exit POR, you must power the V
CCBAT
power supply even if you do not use the
volatile key.
Note:
Related Information
• Reset Manager
Provides information from the Hard Processor System Technical Reference Manual.
• Configuration, Design Security, and Remote System Upgrades in Cyclone V Devices
Provides more information about the MSEL pin settings for each POR delay.
Power Management in Cyclone V Devices
Altera Corporation
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Power Supplies Monitored and Not Monitored by the POR Circuitry
10-6
2013.06.28