EPCS64 Altera Corporation, EPCS64 Datasheet - Page 8

• Manufacturer Part Number: EPCS64
• Description: (EPCS1 - EPCS64) Serial Configuration Devices
• Manufacturer: Altera Corporation

Active Serial FPGA Configuration
Figure 4–4. Multiple Devices in AS Mode
Notes to
(1)
(2)
(3)
(4)
4–8
Configuration Handbook, Volume 2
Configuration
Device (2)
Serial
DATA
DCLK
V
Serial configuration devices cannot be cascaded.
Connect the FPGA MSEL[] input pins to select the AS configuration mode. For details, refer to the appropriate
FPGA family chapter in the Configuration Handbook.
Connect the FPGA MSEL[] input pins to select the PS configuration mode. For details, refer to the appropriate
FPGA family chapter in the Configuration Handbook
ASDI
nCS
CC
Figure
= 3.3-V.
4–4:
f
f
For more information on configuring Cyclone II FPGAs in AS mode or
other configuration modes, see
Devices
For more information on configuring Cyclone FPGAs in AS mode or
other configuration modes, see Chapter 5, Configuring Cyclone FPGAs
in the
Multiple devices can be configured by a single EPCS device. However,
serial configuration devices cannot be cascaded. Check
ensure the programming file size of the cascaded FPGAs does not exceed
the capacity of a serial configuration device.
configuration scheme with multiple FPGAs in the chain. The first
Stratix II or Cyclone device is the configuration master and has its
MSEL[] pins set to AS mode. The following FPGAs are configuration
slave devices and have their MSEL[] pins set to PS mode.
Stratix II or Cyclone Series FPGA (Master)
Configuration Handbook, Volume
in the
CONF_DONE
nSTATUS
nCONFIG
nCE
DATA0
DCLK
nCSO
ASDO
Core Version a.b.c variable
V
CC
Configuration Handbook, Volume
10 kΩ
(1)
V
CC
MSEL[n]
10 kΩ
(1)
nCEO
V
n
CC
Chapter 4, Configuring Cyclone II
10 kΩ
(3)
(1)
1.
Figure 4–4
1.
CONF_DONE
nSTATUS
nCONFIG
nCE
DATA0
DCLK
FPGA (Slave)
Altera Corporation
Table 4–1
shows the AS
MSEL[n]
nCEO
July 2004
to
n
N.C.
(4)