EPM570 Altera, EPM570 Datasheet - Page 61

• Manufacturer Part Number: EPM570
• Description: MAX II Device Family
• Manufacturer: Altera

Altera Corporation
December 2004
Entry into user mode is gated by whether all V
with sufficient operating voltage. If V
simultaneously, the device enters user mode within the t
specifications. If V
device does not enter user mode until 2 µs after all V
powered.
In user mode, the POR circuitry continues to monitor the V
V
voltage sag at or below 1.4 V during user mode, the POR circuit resets the
SRAM and tri-states the I/O pins. Once V
1.55 V for MAX II G devices), the SRAM download restarts and the device
begins to operate after t
Figure 4–5
during power-up into user mode and from user mode to power-down or
brown-out.
CCIO
) voltage level to detect a brown-out condition. If there is a V
Core Version a.b.c variable
shows the voltages for MAX II and MAX II G device POR
CCIO
is powered more than t
CONFIG
Hot Socketing & Power-On Reset in MAX II Devices
time has passed.
CCINT
MAX II Device Handbook, Volume 1
CCINT
and V
CONFIG
CCIO
rises back to 1.7 V (or
CCIO
banks are powered
CCIO
after V
are powered
CONFIG
banks are
CCINT
CCINT
(but not
, the
CCINT
4–7