EP9302-CQZ Cirrus Logic Inc, EP9302-CQZ Datasheet - Page 325

• 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

DS785UM1
9.2.3.4 Receive Descriptor Data/Status Flow
descriptor count
descriptor count
with additional
with additional
Rx Descriptor
Write RxDEQ
Write RxDEQ
Write RxDEQ
and RxSEQ
and Status
Initialize
Queues
SoftWare
Reset
count
Random timing between
Write RxDEQ steps
Figure 9-10. Receive Descriptor Data/Status Flow
Copyright 2007 Cirrus Logic
[CS8950 + LAN]
Processor + LAN
Descriptors
Descriptors
Descriptors
HardWare
Load
Load
Load
Idle
Receive Frame 0
Receive Frame 1
Receive Frame 2
1/10/100 Mbps Ethernet LAN Controller
Rx Status
Rx Status
Rx Status
Write
Write
Write
EP93xx User’s Guide
Process Rx Status,
Process Rx Status,
Process Rx Status,
write RxSEQ
write RxSEQ
write RxSEQ
SoftWare
9-23
9