參數(shù)資料
型號(hào)： MC56F8347MPY60
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 數(shù)字信號(hào)處理
英文描述： 16-BIT, 120 MHz, OTHER DSP, PQFP160
封裝： LQFP-160
文件頁數(shù)： 48/172頁
文件大?。?/td> 2202K
代理商： MC56F8347MPY60
External Memory Interface Timing
56F8347 Technical Data, Rev. 5.0
Freescale Semiconductor
141
Preliminary
DCAOE and DCAEO are calculated as follows:
The timing of write cycles is different when WWS = 0 than when WWS > 0. Therefore, some parameters
contain two sets of numbers to account for this difference. Use the “Wait States Configuration” column
of Table 10-16 to make the appropriate selection.
Figure 10-4 External Memory Interface Timing
Note:
When multiple lines are given for the same wait state configuration, calculate each and then select the
smallest or most negative.
DCAOE =
=
0.5 - MAX XTAL duty cycle, if ZSRC selects prescaler clock and the prescaler is set to
÷ 1
0.0 all other cases
DCAEO =
=
MIN XTAL duty cycle - 0.5, if ZSRC selects prescaler clock and the prescaler is set to
÷ 1
0.0 all other cases
Example of DCAOE and DCAEO calculation:
Assuming prescaler is set for
÷ 1 and prescaler clock is selected by ZSRC, if XTAL duty cycle
ranges between 45% and 60% high;
DCAOE = .50 - .60 = - 0.1
DCAEO = .45 - .50 = - 0.05
tDRD
tRDD
tAD
tDOH
tDOS
tDWR
tRDWR
tWAC
tWRRD
tWR
tAWR
tWRWR
tARDD
tRDA
tRDRD
tRD
tARDA
Data Out
Data In
A0-Axx,CS
RD
WR
D0-D15
Note: During read-modify-write instructions and internal instructions, the address lines do not change state.
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MC56F8347MPYE 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 16 BIT HYBRID CONTROLLER RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
MC56F8347VPY 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-BIT HYBRID CONTROLLERS
MC56F8347VPY60 制造商:Freescale Semiconductor 功能描述:
MC56F8347VPYE 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 16 BIT HYBRID CNTRLR RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
MC56F8347VVF 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers
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