Cirrus Logic EDB9302A - Manual (Page 9)

EDB9302A
Technical Reference Manual
DS653DB1
©
Copyright 2006 Cirrus Logic, Inc. 9
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.
Figure 3. Block Diagram
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.
Audio In
Audio Out
EP9302
Dual USB 2.0
Host
(Full Speed)
Flash
16MByte
16-bit
Peripheral
Expansion
120 pin
JTAG
20 pin
ADC
10 pin
UART0
DB9 w/control
UART1
10 pin
Ethernent
RJ45
Serial
EEPROM
POWER
Vin = +12V
Vout=1.8, 3.3, 5.0
USB 2.0
Device
(High Speed)
SDRAM
32 MByte
16-bit
Memory
Expansion
120 pin
CIR
Reset and
voltage
monitoring
RTC
battery backed