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TMS320VC5407 参数 Datasheet PDF下载

TMS320VC5407图片预览
型号: TMS320VC5407
PDF下载: 下载PDF文件 查看货源
内容描述: 定点数字信号处理器 [Fixed-Point Digital Signal Processors]
分类和应用: 数字信号处理器
文件页数/大小: 110 页 / 1351 K
品牌: TI [ TEXAS INSTRUMENTS ]
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Electrical Specifications  
5.8 Memory and Parallel I/O Interface Timing  
5.8.1 Memory Read  
External memory reads can be performed in consecutive or nonconsecutive mode under control of the  
CONSEC bit in the BSCR. Table 58 and Table 59 assume testing over recommended operating conditions  
with MSTRB = 0 and H = 0.5t  
(see Figure 55 and Figure 56).  
c(CO)  
Table 58. Memory Read Timing Requirements  
MIN  
MAX  
UNIT  
For accesses not immediately following a  
HOLD operation  
4H9  
ns  
Access time, read data access from address  
valid, first read access  
t
a(A)M1  
For read accesses immediately following a  
HOLD operation  
4H11  
2H9  
ns  
t
t
t
Access time, read data access from address valid, consecutive read accesses  
Setup time, read data valid before CLKOUT low  
ns  
ns  
ns  
a(A)M2  
su(D)R  
h(D)R  
7
0
Hold time, read data valid after CLKOUT low  
Address,R/W, PS, DS, and IS timings are all included in timings referenced as address.  
Table 59. Memory Read Switching Characteristics  
PARAMETER  
MIN  
MAX  
UNIT  
For accesses not immediately following a  
HOLD operation  
1  
4
ns  
t
Delay time, CLKOUT low to address valid  
d(CLKL-A)  
For read accesses immediately following a  
HOLD operation  
1  
6
ns  
t
Delay time, CLKOUT low to MSTRB low  
Delay time, CLKOUT low to MSTRB high  
1  
4
4
ns  
ns  
d(CLKL-MSL)  
t
0
d(CLKL-MSH)  
Address,R/W, PS, DS, and IS timings are all included in timings referenced as address.  
76  
SPRS007D  
November 2001 Revised April 2004  
 
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