EP9307-CRZR Cirrus Logic Inc, EP9307-CRZR Datasheet - Page 15

• Manufacturer Part Number: EP9307-CRZR
• Description: IC Universal Platform ARM9 SOC Prcessor
• Manufacturer: Cirrus Logic Inc
• Series: EP9r

Specifications of EP9307-CRZR

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, Ethernet, I²C, IrDA, Keypad/Touchscreen, SPI, UART/USART, USB
• Peripherals: AC'97, DMA, I&sup2:S, LCD, LED, MaverickKey, POR, PWM, WDT
• Number Of I /o: 14
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 3.6 V
• Data Converters: A/D 8x12b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 272-LFBGA
• Processor Series: EP93xx
• Core: ARM920T
• Data Bus Width: 32 bit
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: EDB9307A-Z
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details
• Other names: Q5809834A

Memory Interface
Figure 2
values for the timings of each of the SDRAM modes.
SDRAM Load Mode Register Cycle
DS667F2
SDCLK high time
SDCLK low time
SDCLK rise/fall time
Signal delay from SDCLK rising edge time
Signal hold from SDCLK rising edge time
DQMn delay from SDCLK rising edge time
DQMn hold from SDCLK rising edge time
DA valid setup to SDCLK rising edge time
DA valid hold from SDCLK rising edge time
SDWEn
SDCLK
SDCSn
DQMn
RASn
CASn
through
AD
DA
Figure 5
t
clkrf
define the timings associated with all phases of the SDRAM. The following table contains the
Parameter
Figure 2. SDRAM Load Mode Register Cycle Timing Measurement

t
Copyright 2010 Cirrus Logic (All Rights Reserved)
d
OP-Code
t
h
ARM9 SOC with Ethernet, USB, Display and Touchscreen
Symbol
t
t
clk_high
clk_low
t
t
t
t
t
DQd
DQh
DAh
clkrf
DAs
t
t
d
h
t
Min
clk_low
1
1
2
3
-
-
-
-
-
(t
(t
HCLK
HCLK
Typ
t
2
clk_high
-
-
-
-
-
-
) / 2
) / 2
Max
4
8
8
-
-
-
-
-
-
EP9307
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
15