ep2sgx60e Altera Corporation, ep2sgx60e Datasheet - Page 7

• Manufacturer Part Number: ep2sgx60e
• Description: 4. Serial Configuration Devices Epcs1, Epcs4, Epcs16, Epcs64, And Epcs128 Data Sheet
• Manufacturer: Altera Corporation

Figure 4–1. Serial Configuration Device Block Diagram
Altera Corporation
May 2008
Serial Configuration Device
DCLK
nCS
Serial Configuration Devices (EPCS1, EPCS4, EPCS16, EPCS64, and EPCS128) Data Sheet
f
Figure 4–1
Accessing Memory in Serial Configuration Devices
You can access the unused memory locations of the serial configuration
device to store or retrieve data through the Nios processor and SOPC
Builder. SOPC Builder is an Altera tool for creating bus-based (especially
microprocessor-based) systems in Altera devices. SOPC Builder
assembles library components such as processors and memories into
custom microprocessor systems.
SOPC Builder includes the EPCS device controller core, which is an
interface core specifically designed to work with the serial configuration
device. With this core, you can create a system with a Nios embedded
processor that allows software access to any memory location within the
serial configuration device.
For more information about accessing memory within the serial
configuration device, refer to the
Address Counter
Decode Logic
Control
Logic
shows the serial configuration device block diagram.
Data Buffer
Register
Memory
I/O Shift
Array
Active Serial Memory Interface Data
Configuration Handbook, Volume 2
Status Register
DATA
ASDI
Sheet.
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