EP2S180F1020C4 Datasheet, PDF (690/768 Pages) Altera Corporation – Stratix II Device Handbook, Volume 1

System Design Guidelines
The MAX II device or microprocessor and flash configuration can use
FPP, PS, or PPA. Decompression and design security features are
supported in the FPP (requires 4× DCLK) and PS modes only. Figure 8–9
shows a system block diagram for remote system upgrade with the
MAX II device or microprocessor and flash.
Figure 8–9. System Block Diagram for Remote System Upgrade With MAX II
Device or Microprocessor and Flash Device
Memory
ADDR DATA[7..0]
External Host
(MAX II Device or
Microprocessor)
V_CC (1) V_CC (1)
Stratix II/Stratix II GX Device
10 kΩ
10 kΩ
MSEL[3..0] (3)
CONF_DONE
nSTATUS
nCE
nCEO
N.C.
GND
DATA[7..0]
nCONFIG
DCLK
PGM[2..0] RUnLU (2)
Notes to Figure 8–9:
(1) Connect the pull-up resistor to a supply that provides an acceptable input signal
for the device.
(2) Connect RUnLU to GND or V_CC to select between remote and local update modes.
(3) Connect MSEL[3..0] to 0100 to enable remote update remote system upgrade
mode.
Remote System Upgrade with Enhanced Configuration Devices
■ Enhanced Configuration devices support remote system upgrade
with FPP or PS configuration schemes. The Stratix II or Stratix II GX
decompression and design security features are only supported in
the PS mode. The enhanced configuration device’s decompression
feature is supported in both PS and FPP schemes.
■ In remote update mode, neither the factory configuration nor the
application configurations should alter the enhanced configuration
device’s option bits or the page 000 factory configuration data. This
ensures that an error during remote update can always be resolved
by reverting to the factory configuration located at page 000.
8–30
Stratix II Device Handbook, Volume 2
Altera Corporation
January 2008