HC4GX15 Datasheet, PDF (242/668 Pages) Altera Corporation – HardCopy IV Device Handbook

4–8
Chapter 4: Matching Stratix IV Power and Configuration Requirements with HardCopy IV Devices
Examples of Mapping a Stratix FPGA Configuration to a HardCopy ASIC
Figure 4–5. HardCopy IV Device Replacing a Stand-Alone Stratix IV Device
V_CCPGM V_CCPGM V_CCPGM
HardCopy IV Device
DCLK
DATA0
nSTATUS
CONF_DONE
nCONFIG
n
MSEL
nCEO
nCE
10 kΩ 10 kΩ
N.C.
N.C.
10 kΩ
N.C.
GND
HardCopy IV Device Replacing a Stratix IV Device in a Cascaded Configuration Chain
Figure 4–6 shows a design where the configuration data for the FPGAs is stored in a
single configuration device and the Stratix IV devices are connected in a
multiple-device configuration chain. The second device in the chain is replaced with a
HardCopy IV device.
Figure 4–6. Configuration of Multiple FPGAs in a Cascade Chain
V_CCPGM
V_CCPGM
V_CCPGM
10 kΩ 10 kΩ
10 kΩ
V_CCPGM
GND
Stratix IV Device 3
MSEL2
MSEL1
MSEL0
DCLK
DATA0
nSTATUS
CONF_DONE
nCONFIG
N.C. nCEO
nCE
V_CCPGM
GND
Stratix IV Device 2
MSEL2
MSEL1
MSEL0
DCLK
DATA0
nSTATUS
CONF_DONE
nCONFIG
nCEO
nCE
V_CCPGM
GND
Stratix IV Device 1
MSEL2
MSEL1
MSEL0
DCLK
DATA0
nSTATUS
CONF_DONE
nCONFIG
nCEO
nCE
GND
Configuration
Device
DCLK
DATA
OE
nCS
nCASC
nINIT_CONF
HardCopy IV Device Handbook, Volume 2
© June 2009 Altera Corporation