Core8051
Figure 9 shows an external data memory read cycle with one stretch cycle.
0ns
50ns
100ns
150ns
200ns
250ns
300ns
350ns
clk
memaddr
N
N+1
Addr
N+1
memrd
memwr
mempsrd
mempswr
sample
sample
sample
sample
sample
sample
mempsack
memdatao
read sample
read sample
read sample
memdatai
(N)
Data
(N+1)
Figure 9 ? External Data Memory Read Cycle with One Stretch Cycle
Figure 10 shows an external data memory read cycle with two stretch cycles.
0ns
50ns
100ns
150ns
200ns
250ns
300ns
clk
memaddr
N
N+1
Addr
N+1
memrd
memwr
mempsrd
memdatao
max. 3*Tclk
memdatai
(N)
read sample
Data
(N+1)
read
sample
read
sample
Figure 10 ? External Data Memory Read Cycle with Two Stretch Cycles
Figure 11 shows an external data memory read cycle with seven stretch cycles.
0ns
50ns
100ns
150ns
200ns
250ns
300ns
350ns
400ns
450ns
500ns
clk
memaddr
N
N+1
Addr
N+1
memrd
memwr
mempsrd
memdatao
max. 8*Tclk
memdatai
(N)
read sample
Data
read
(N+1)
read
sample sample
Figure 11 ? External Data Memory Read Cycle with Seven Stretch Cycles
v6.0
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相关PDF资料
COREFFT-RM IP MODULE COREFFT
COREFIR-RM IP MODULE COREFIR
COREPCIF-RM IP MODULE COREPCIF
COREU1LL-AR IP MODULE COREU1LL
COREU1PHY-AR IP MODULE COREU1PHY
CORR-8BIT-XM-UT2 SITE LICENSE IP CORRELATOR XP
CP2-GSA-L CONN SHIELD LOWER TYPE A 22
CP2-HSA110-1 CONN SHROUD CPCI 2MM TYPE A 22
相关代理商/技术参数
CORE8051-EV 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:Core8051
CORE8051-SN 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:Core8051
CORE8051-SR 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:Core8051
CORE8051-UR 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:Core8051
CORE8051-XX 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:Core8051
Core8b/10b-AR 制造商:Microsemi Corporation 功能描述:CORE - Virtual or Non-Physical Inventory (Software & Literature)
COREAES128 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CoreAES128
COREAES128-AN 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CoreAES128