EP4CE55F23C8 Altera, EP4CE55F23C8 Datasheet - Page 234

• 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: -

8–68
Remote System Upgrade
Functional Description
Cyclone IV Device Handbook, Volume 1
1
1
Cyclone IV devices support remote system upgrade in AS and AP configuration
schemes. You can also implement remote system upgrade with advanced Cyclone IV
features such as real-time decompression of configuration data in the AS
configuration scheme.
Remote system upgrade is not supported in a multi-device configuration chain for
any configuration scheme.
The dedicated remote system upgrade circuitry in Cyclone IV devices manages
remote configuration and provides error detection, recovery, and status information.
A Nios
provides access to the remote configuration data source and an interface to the
configuration memory.
Configuration memory refers to serial configuration devices (EPCS) or supported
parallel flash memory, depending on the configuration scheme that is used.
The remote system upgrade process of the Cyclone IV device consists of the following
steps:
1. A Nios II processor (or user logic) implemented in the Cyclone IV device logic
2. The Nios II processor (or user logic) writes this new configuration data into a
3. The Nios II processor (or user logic) starts a reconfiguration cycle with the new or
4. The dedicated remote system upgrade circuitry detects and recovers from any
Figure 8–30
(the numbers in
Figure 8–30. Functional Diagram of Cyclone IV Device Remote System Upgrade
array receives new configuration data from a remote location. The connection to
the remote source is a communication protocol, such as the transmission control
protocol/Internet protocol (TCP/IP), peripheral component interconnect (PCI),
user datagram protocol (UDP), universal asynchronous receiver/transmitter
(UART), or a proprietary interface.
configuration memory.
updated configuration data.
error that might occur during or after the reconfiguration cycle and provides error
status information to the user design.
®
II processor or a user logic implemented in the Cyclone IV device logic array
Development
Location
shows the steps required for performing remote configuration updates
Figure 8–30
Data
Data
Chapter 8: Configuration and Remote System Upgrades in Cyclone IV Devices
coincide with steps 1–3).
1
Data
Control Module
Cyclone IV
Device
Device Configuration
© December 2010 Altera Corporation
2
3
Configuration
Remote System Upgrade
Memory