参数资料
型号: EP9312-CB
厂商: CIRRUS LOGIC INC
元件分类: 微控制器/微处理器
英文描述: Universal Platform System-on-chip Processor
中文描述: 32-BIT, 200 MHz, RISC PROCESSOR, PBGA352
封装: 27 X 27 MM, PLASTIC, BGA-352
文件页数: 15/62页
文件大小: 884K
代理商: EP9312-CB
DS515PP7
Copyright 2005 Cirrus Logic (All Rights Reserved)
15
EP9312
Universal Platform SOC Processor
Memory Interface
SDRAM Load Mode Register Cycle
Figure 2
through
Figure 5
define the timings associated with all phases of the SDRAM. The following table contains the
values for the timings of each of the SDRAM modes.
Parameter
Symbol
Min
Typ
Max
Unit
SDCLK high time
t
clk_high
-
(t
HCLK
) / 2
-
ns
SDCLK low time
t
clk_low
-
(t
HCLK
) / 2
-
ns
SDCLK rise/fall time
t
clkrf
-
2
4
ns
Signal delay from SDCLK rising edge time
t
d
-
-
8
ns
Signal hold from SDCLK rising edge time
t
h
1
-
-
ns
DQMn delay from SDCLK rising edge time
t
DQd
-
-
8
ns
DQMn hold from SDCLK rising edge time
t
DQh
1
-
-
ns
DA valid setup to SDCLK rising edge time
t
DAs
2
-
-
ns
DA valid hold from SDCLK rising edge time
t
DAh
3
-
-
ns
Figure 2. SDRAM Load Mode Register Cycle Timing Measurement
SDCLK
SDCSn
RASn
CASn
SDWEn
DQMn
AD
DA
OP-Code
t
clk_high
t
clk_low
t
clkrf
t
d
t
h
相关PDF资料
PDF描述
EP9312-CBZ Universal Platform System-on-chip Processor
EP9312-EB Universal Platform System-on-chip Processor
EP9312-EBZ Universal Platform System-on-chip Processor
EP9312-IB Universal Platform System-on-chip Processor
EP9312-IBZ Universal Platform System-on-chip Processor
相关代理商/技术参数
参数描述
EP9312-CB/E1 制造商:Cirrus Logic 功能描述:
EP9312-CB/E2 制造商:Cirrus Logic 功能描述:
EP9312-CBREVD1 制造商:Cirrus Logic 功能描述:
EP9312-CBREVE0 制造商:Cirrus Logic 功能描述:
EP9312-CBREVE1 制造商:Cirrus Logic 功能描述: