EP7311-CV Cirrus Logic Inc, EP7311-CV Datasheet - Page 18

• Manufacturer Part Number: EP7311-CV
• Description: Low-Power Processor 208-Pin LQFP
• Manufacturer: Cirrus Logic Inc
• Series: EP7r

Specifications of EP7311-CV

• Core Processor: ARM7
• Core Size: 32-Bit
• Speed: 74MHz
• Connectivity: Codec, EBI/EMI, IrDA, Keypad, Multimedia Codec, SPI/Microwire1, UART/USART
• Peripherals: LCD, LED, MaverickKey, PWM
• Number Of I /o: 27
• Program Memory Type: ROMless
• Ram Size: 56K x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 2.7 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 208-LQFP
• Processor Series: EP73xx
• Core: ARM720T
• Data Bus Width: 32 bit
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: No
• Other names: 598-1224

EP7311
High-Performance, Low-Power System on Chip
SDRAM Burst Read Cycle
18
SDMWE
SDCLK
SDRAS
SDCAS
SDQM
ADDR
SDCS
DATA
[0:3]
Note:
1. Timings are shown with CAS latency = 2
2. The SDCLK signal may be phase shifted relative to the rest of the SDRAM control and data signals due to uneven loading.
Designers should take care to ensure that delays between SDRAM control and data signals are approximately equal.
t
t
CSd
RAd
t
t
CSa
RAa
ADRAS
t
ADv
Figure 4. SDRAM Burst Read Cycle Timing Measurement
©
Copyright Cirrus Logic, Inc. 2005
t
t
CSd
CAd
t
t
CSa
CAa
(All Rights Reserved)
t
ADv
ADCAS
t
DAs
D1
t
DAh
t
DAs
D2
t
DAh
t
DAs
D3
t
DAh
t
DAs
D4
t
DAh
DS506F1
t
RAnv