参数资料
型号: CORE8051-AR
厂商: Microsemi SoC
文件页数: 24/41页
文件大小: 0K
描述: IP MODULE CORE8051
标准包装: 1
系列: *
Core8051
Figure 12 shows an external data memory write cycle without stretch cycles.
0ns
50ns
100ns
150ns
200ns
250ns
300ns
clk
memaddr
N
N+1
Addr
N+1
memrd
memwr
mempsrd
memdatao
Data
write sample
memdatai
(N)
read sample
(N+1)
read sample
Figure 12 ? External Data Memory Write Cycle without Stretch Cycles
Figure 13 shows an external data memory write cycle with one stretch cycle.
0ns
50ns
100ns
150ns
200ns
250ns
300ns
clk
memaddr
N
N+1
Addr
N+1
memrd
memwr
mempsrd
memdatao
Data
write sample
memdatai
(N)
read sample
(N+1)
read
sample
Figure 13 ? External Data Memory Write Cycle with One Stretch Cycle
Figure 14 shows an external data memory write cycle with two stretch cycles.
0ns
50ns
100ns
150ns
200ns
250ns
300ns
350ns
400ns
clk
memaddr
N+1
Addr
N+1
memrd
memwr
mempsrd
memdatao
Data
write sample
memdatai
(N)
read sample
(N+1)
read sample
Figure 14 ? External Data Memory Write Cycle with Two Stretch Cycles
24
v6.0
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