EP9301-CQZ Cirrus Logic Inc, EP9301-CQZ Datasheet - Page 325

• Manufacturer Part Number: EP9301-CQZ
• Description: IC ARM9 SOC PROCESSOR 208LQFP
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9301-CQZ

• Core Size: 16/32-Bit
• Peripherals: AC'97, DMA, I&sup2:S, LED, MaverickKey, POR, PWM, WDT
• Core Processor: ARM9
• Speed: 166MHz
• Connectivity: EBI/EMI, Ethernet, I²C, IrDA, SPI, UART/USART, USB
• Number Of I /o: 19
• Program Memory Type: ROMless
• 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
• Package / Case: 208-TQFP, 208-VQFP
• Controller Family/series: (ARM9)
• No. Of I/o's: 19
• Ram Memory Size: 16MB
• Cpu Speed: 166MHz
• No. Of Timers: 4
• Digital Ic Case Style: TQFP
• Embedded Interface Type: SPI
• Rohs Compliant: Yes
• Processor Series: EP93xx
• Core: ARM920T
• Data Bus Width: 32 bit
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 598-1136

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