EP3C10U256C6N Datasheet, PDF (226/274 Pages) Altera Corporation – Cyclone III Device Family Overview

9–68
Chapter 9: Configuration, Design Security, and Remote System Upgrades in the Cyclone III Device Family
Configuration Features
Table 9–22. Dedicated Configuration Pins on Cyclone III Device Family (Part 3 of 4)
Pin Name
DATA[0]
(1), (2)
DATA[1],
ASDO ^{(1), (2)}
DATA[7..2]
DATA[15..8]
User
Mode
I/O
I/O
I/O
I/O
Configuration
Scheme
Pin Type
Description
Data input. In serial configuration modes, bit-wide
configuration data is presented to the target Cyclone III
device family on the DATA[0] pin.
PS, FPP, AS,
AP ⁽³⁾
Input (PS,
FPP, AS).
Bidirectional
(AP) ⁽³⁾
In AS mode, DATA[0] has an internal pull-up resistor that is
always active. After AS configuration, DATA[0] is a dedicated
input pin with optional user control.
After PS or FPP configuration, DATA[0] is available as a user
I/O pin and the state of this pin depends on the Dual-Purpose
Pin settings.
After AP configuration, DATA[0] is a dedicated bidirectional
pin with optional user control. ⁽³⁾
Data input in non-AS mode. Control signal from the
Cyclone III device family to the serial configuration device in
AS mode used to read out configuration data. The DATA[1]
pin functions as the ASDO pin in AS mode.
FPP, AS, AP ⁽³⁾
Input (FPP),
Output (AS).
Bidirectional
(AP) ⁽³⁾
In AS mode, DATA[1] has an internal pull-up resistor that is
always active. After AS configuration, DATA[1] is a dedicated
output pin with optional user control.
In PS configuration scheme, DATA[1] functions as user I/O
pin during configuration, which means it is tri-stated.
After FPP configuration, DATA[1] is available as a user I/O
pin and the state of this pin depends on the Dual-Purpose
Pin settings.
In AP configuration scheme, which is for Cyclone III devices
only, the byte-wide or word-wide configuration data is
presented to the target Cyclone III device on DATA[7..0] or
DATA[15..0], respectively. After AP configuration, DATA[1]
is a dedicated bidirectional pin with optional user control. ⁽³⁾
Data inputs.
In AS or PS configuration schemes, they function as user I/O
pins during configuration, which means they are tri-stated.
FPP, AP ⁽³⁾
Inputs
(FPP).
Bidirectional
(AP) ⁽³⁾
After FPP configuration, DATA[7..2] are available as user
I/O pins and the state of these pin depends on the
Dual-Purpose Pin settings.
The byte-wide or word-wide configuration data is presented
to the target Cyclone III device on DATA[7..0] or
DATA[15..0], respectively, in the AP configuration scheme
(for Cyclone III devices only). After AP configuration,
DATA[7..2] are dedicated bidirectional pins with optional
user control. ⁽³⁾
Data inputs. Word-wide configuration data is presented to the
target Cyclone III device on DATA[15..0].
AP ⁽³⁾
In PS, FPP, or AS configuration schemes, they function as
Bidirectional user I/O pins during configuration, which means they are
tri-stated.
After AP configuration, DATA[15:8] are dedicated
bidirectional pins with optional user control.
Cyclone III Device Handbook
Volume 1
August 2012 Altera Corporation