EP9302-CQZ Cirrus Logic Inc, EP9302-CQZ Datasheet - Page 689
![IC ARM9 SOC PROCESSOR 208LQFP](/photos/12/23/122385/mfg_ep9302_parts_sml.jpg)
EP9302-CQZ
Manufacturer Part Number
EP9302-CQZ
Description
IC ARM9 SOC PROCESSOR 208LQFP
Manufacturer
Cirrus Logic Inc
Series
EP9r
Datasheets
1.EP9307-CRZ.pdf
(824 pages)
2.EP9302-IQZ.pdf
(42 pages)
3.EP9302-IQZ.pdf
(4 pages)
4.EP9302-IQZ.pdf
(40 pages)
Specifications of EP9302-CQZ
Program Memory Type
ROMless
Package / Case
208-LQFP
Core Processor
ARM9
Core Size
16/32-Bit
Speed
200MHz
Connectivity
EBI/EMI, Ethernet, I²C, IrDA, SPI, UART/USART, USB
Peripherals
AC'97, DMA, I²:S, LED, MaverickKey, POR, PWM, WDT
Number Of I /o
19
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 3.6 V
Data Converters
A/D 5x12b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Processor Series
EP93xx
Core
ARM920T
Data Bus Width
32 bit
Data Ram Size
16 bit
Interface Type
USB, USART, SPI
Maximum Clock Frequency
200 MHz
Number Of Programmable I/os
37
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
EDB9302A-Z
Controller Family/series
(ARM9)
No. Of I/o's
19
Ram Memory Size
16MB
Cpu Speed
200MHz
No. Of Timers
4
Embedded Interface Type
AC97, I2S, SPI, UART, USB
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
598-1132 - KIT DEVELOPMENT EP9302 ARM9
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
598-1137
Available stocks
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- EP9307-CRZ PDF datasheet
- EP9302-IQZ PDF datasheet #2
- EP9302-IQZ PDF datasheet #3
- EP9302-IQZ PDF datasheet #4
- Current page: 689 of 824
- Download datasheet (13Mb)
DS785UM1
22.1 Introduction
The AC’97 Controller includes a 5-pin serial interface to an external audio codec. The AC-
Link is a bi-directional, fixed rate, serial PCM (Pulse Code Modulation) digital stream, dividing
each audio frame into 12 outgoing and 12 incoming data streams (slots), each with 20-bit
sample resolution.
The AC’97 Controller contains logic that controls the AC-Link to the audio codec and an
interface to the AMBA APB.
The main features of the AC’97 are:
Table 22-1
The AC’97 pins are multiplexed and may be used for the I
setting DeviceCfg.I2SonAC97.
The AC’97 Controller can support up to four different sampling rates at a time. To allow the
controller to support all slots per frame, it has been assumed that the sampling rate for each
different type of data are the same. For example, all audio data are at the same sampling rate
• Serial-to-parallel conversion on data received from the external codec.
• Parallel-to-serial conversion on data transmitted to the external codec.
• Reception / Transmission of control and status information.
• Supports up to 4 different sampling rates at a time with 4 transmit and 4 receive
Signal Name Input/Output
channels. The transmit and receive paths are buffered with internal FIFO memories
allowing data to be stored independently in both transmit and receive modes. The data
for the FIFOs can be written via either the APB interface or the DMA channels (1-3).
SDATAOUT
SDATAIN
BITCLK
RESET
SYNC
lists the input and output signals for the AC’97 controller.
Output
Output
Output
Input
Input
Table 22-1. AC’97 Input and Output Signals
Serial input data stream from the audio codec. It contains status
information and digital audio input streams.
Clock from serial codec. Fixed at 12.288 MHz.
This serial output transmits the control information and digital audio
output streams to the audio codec.
Synchronization signal to the external codec. Fixed at 48 kHz. It is also
output asynchronously when the audio codec is in warm reset state.
Asynchronous cold reset (active low, resets codec registers).
Copyright 2007 Cirrus Logic
Description
2
S controller instead of AC'97 by
22AC’97 Controller
Chapter 22
22-1
22
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