EP4CE55F23C8 Altera, EP4CE55F23C8 Datasheet - Page 231

• Manufacturer Part Number: EP4CE55F23C8
• Description: IC CYCLONE IV FPGA 55K 484FBGA
• Manufacturer: Altera
• Series: CYCLONE® IV Er

Specifications of EP4CE55F23C8

• Number Of Logic Elements/cells: 55856
• Number Of Labs/clbs: 3491
• Total Ram Bits: 2340000
• Number Of I /o: 324
• Voltage - Supply: 1.15 V ~ 1.25 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 484-FBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -

Chapter 8: Configuration and Remote System Upgrades in Cyclone IV Devices
Configuration
Table 8–18. Dedicated Configuration Pins on the Cyclone IV Device (Part 3 of 4)
© December 2010 Altera Corporation
DCLK
DATA[0]
DATA[1]/
ASDO
Pin Name
Mode
User
N/A
I/O
I/O
Configuration
PS, FPP, AS,
PS, FPP, AS,
FPP, AS, AP
Scheme
AP
AP
(1)
(1)
(1)
Output (AS).
Bidirectional
Input (FPP).
Bidirectional
Output (AS,
Input (PS,
Input (PS,
FPP, AS).
Pin Type
(AP)
(AP)
AP)
FPP).
(1)
(1)
(1)
In PS and FPP configuration, DCLK is the clock input used to
clock data from an external source into the target Cyclone IV
device. Data is latched into the device on the rising edge of
DCLK.
In AS mode, DCLK is an output from the Cyclone IV device that
provides timing for the configuration interface. It has an internal
pull-up resistor (typically 25 k) that is always active.
In AP mode, DCLK is an output from the Cyclone IV E device
that provides timing for the configuration interface.
In AS or AP configuration schemes, this pin is driven into an
inactive state after configuration completes. Alternatively, in
active schemes, you can use this pin as a user I/O during user
mode. In PS or FPP schemes that use a control host, you must
drive DCLK either high or low, whichever is more convenient. In
passive schemes, you cannot use DCLK as a user I/O in user
mode. Toggling this pin after configuration does not affect the
configured device.
Data input. In serial configuration modes, bit-wide configuration
data is presented to the target Cyclone IV device on the
DATA[0] pin.
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. 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.
The DATA[1] pin functions as the ASDO pin in AS mode. Data
input in non-AS mode. Control signal from the Cyclone IV device
to the serial configuration device in AS mode used to read out
configuration data.
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 a PS configuration scheme, DATA[1] functions as a 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 an AP configuration scheme, for Cyclone IV E devices only,
the byte-wide or word-wide configuration data is presented to
the target Cyclone IV E device on DATA[7..0] or
DATA[15..0], respectively. After AP configuration,
DATA[1]is a dedicated bidirectional pin with optional user
control.
(1)
Description
(1)
Cyclone IV Device Handbook, Volume 1
(1)
8–65