EP9302-CQZ Cirrus Logic Inc, EP9302-CQZ Datasheet - Page 338

• Manufacturer Part Number: EP9302-CQZ
• Description: IC ARM9 SOC PROCESSOR 208LQFP
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

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, I&sup2: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

9
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1/10/100 Mbps Ethernet LAN Controller
EP93xx User’s Guide
9.2.3.14 Transmit Descriptor Data/Status Flow
descriptor count
descriptor count
descriptor count
Tx Descriptor
Write TxDEQ
Write TxDEQ
Write TxDEQ
and Status
with valid
with valid
with valid
Initialize
Queues
SoftWare
Reset
Random timing between
Write TxEnq steps
Figure 9-17. Transmit Descriptor Data/Status Flow
Processor + LAN
[CS8950 + LAN]
Copyright 2007 Cirrus Logic
Descriptors
Descriptors
Descriptors
HardWare
Read Tx
Read Tx
Read Tx
Read Tx
Read Tx
Read Tx
Read Tx
Idle
Data
Data
Data
Data
Send Frame 1
Send Frame 0
Send Frame 2
Tx Status
Tx Status
Tx Status
Write
Write
Write
SoftWare
Tx Status
Tx Status
Tx Status
Process
Process
Process
DS785UM1