Edb9302A Circuit Description; Figure 3. Block Diagram - Cirrus Logic EDB9302A Technical Reference Manual

4. EDB9302A Circuit Description

This chapter makes reference to the schematics in Appendix A and discusses the main circuit
functionality of each schematic page. A detailed block diagram of the EDB9302A Engineering
Development Board is shown below.
Memory SDRAM
Expansion 32 MByte
120 pin 16-bit
POWER
Vin = +12V
Vout=1.8, 3.3, 5.0
Reset and
voltage
monitoring
Detailed information regarding the EP9302 processor and interfaces can be found at www.cirrus.com.
The details of this device will not be discussed in this document. Refer to the EP9302 datasheet, User's
Guide, and other information on the web site for more information.
DS653DB1
USB 2.0 Flash
Device 16MByte
(High Speed) 16-bit
RTC
battery backed
CIR
UART1
10 pin
Ethernent
RJ45
Serial
EEPROM
Peripheral
Expansion
120 pin

Figure 3. Block Diagram

©
Copyright 2006 Cirrus Logic, Inc.
Technical Reference Manual
EP9302
EDB9302A
JTAG
20 pin
Audio In
Audio Out
ADC
10 pin
Dual USB 2.0
Host
(Full Speed)
UART0
DB9 w/control
9