EP3C16F256I7N Altera, EP3C16F256I7N Datasheet - Page 238

• Manufacturer Part Number: EP3C16F256I7N
• Description: Cyclone III
• Manufacturer: Altera

Configuring Cyclone III Devices
10–2
Cyclone III Device Handbook, Volume 1
f
f
Configuration Devices
The Altera
are used in the AS configuration scheme for Cyclone III devices. Serial
configuration devices offer, a low cost, low pin count configuration
solution.
For information about serial configuration devices, refer to the Serial
Configuration Devices (EPCS1, EPCS4, EPCS16 and EPCS64) Data Sheet
chapter in volume 2 of the Configuration Handbook.
Existing batches of EPCS4 manufactured on 0.15 µm process geometry
supports AS configuration in Cyclone III devices. However, batches of
EPCS4 manufactured on 0.18 µm process geometry does not support AS
configuration in Cyclone III devices.
For information about product traceability and transition date to
differentiate between supported and non-supported EPCS4 serial
configuration devices, refer to the PCN 0514 Manufacturing Changes on
EPCS Family process change notification on the Altera website at
www.altera.com.
In the AP configuration scheme, the commodity parallel flash is used as
configuration memory.
For information about the supported families for the commodity parallel
flash, refer to
Configuration Schemes
A configuration scheme with different configuration voltage standards is
selected by driving the Cyclone III device’s MSEL pins either high or low
as shown in
supply of the bank they reside in. The MSEL[3..0] pins have 5-kΩ
internal pull-down resistors that are always active. During power-on
reset (POR) and during reconfiguration, the MSEL pins have to be at least
LVTTL V
respectively.
IL
®
or V
Table
serial configuration devices (EPCS64, EPCS16, and EPCS4)
Table 10–9 on page
IH
10–1. The MSEL pins are powered by the V
levels to be considered a logic low or logic high,
10–32.
Altera Corporation-Preliminary
CCINT
March 2007
power