EP3C16F256I7 Altera, EP3C16F256I7 Datasheet - Page 342

• Manufacturer Part Number: EP3C16F256I7
• Description: Cyclone III
• Manufacturer: Altera

Remote System Upgrade With Cyclone III Devices
Figure 12–1. Functional Diagram of Cyclone III Remote System Upgrade
12–2
Cyclone III Device Handbook, Volume 1
Development
Location
The Cyclone III device's remote system upgrade process involves the
following steps:
1.
2.
3.
4.
Figure 12–1
configuration updates. (The numbers in the figure below coincide with
the steps above.)
A Nios II processor (or user logic) implemented in the Cyclone III
device logic 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.
The Nios II processor (or user logic) writes this new configuration
data into a non-volatile configuration memory. The non-volatile
configuration memory can be the serial configuration device (in the
AS configuration scheme), or the supported parallel flash memory
(in the AP configuration scheme).
The Nios II processor (or user logic) initiates a reconfiguration cycle
with the new or updated configuration data.
The dedicated remote system upgrade circuitry detects and recovers
from any error(s) that might occur during or after the
reconfiguration cycle, and provides error status information to the
user design.
Data
Data
1
shows the steps required for performing remote
Data
Cyclon III Device
Control Module
Cyclone III Device Configuration
Altera Corporation-Preliminary
2
3
Configuration
Memory
March 2007