HC4GX15 Datasheet, PDF (244/668 Pages) Altera Corporation – HardCopy IV Device Handbook

4–10
Chapter 4: Matching Stratix IV Power and Configuration Requirements with HardCopy IV Devices
Examples of Mapping a Stratix FPGA Configuration to a HardCopy ASIC
HardCopy IV Device Replacing a Stratix IV Device Configured with a Microprocessor
When you replace a Stratix IV FPGA with a HardCopy IV device, the microprocessor
code must be modified to treat the HardCopy IV device as a non-configurable device.
Figure 4–8 shows an example with two Stratix IV devices configured using a
microprocessor or MAX^® II device and the FPP configuration scheme. This example
does not require changes to the board.
Figure 4–8. Multiple-Device FPP Configuration Using a Microprocessor or a MAX II Device
Memory
ADDR DATA[7..0]
External Host
(MAX II Device or
Microprocessor)
VCCPGM V_CCPGM
10 kΩ
10 kΩ
GND
Stratix IV Device 1
MSEL[2..0]
CONF_DONE
nSTATUS
GND
nCE
nCEO
DATA[7..0]
nCONFIG
DCLK
Stratix IV Device 2
MSEL[2..0]
CONF_DONE
nSTATUS
nCE
nCEO
GND
N.C.
DATA[7..0]
nCONFIG
DCLK
Note to Figure 4–8:
(1) Connect the pull-up resistor to a supply that provides an acceptable input signal for all devices in the chain. The V_CCPGM voltage meets the I/O
standard’s V_IH specification on the device and the external host.
HardCopy IV Device Handbook, Volume 2
© June 2009 Altera Corporation