參數(shù)資料
型號: DSPB56720AG
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: SymphonyTM DSP56720 / DSP56721 Multi-Core Audio Processors
中文描述: SymphonyTM DSP56720 / DSP56721多核音頻處理器
文件頁數(shù): 14/54頁
文件大小: 671K
代理商: DSPB56720AG
Symphony
TM
DSP56720 / DSP56721 Multi-Core Audio Processors, Rev.1
Freescale Semiconductor
14
2.1.8
Reset, Stop, Mode Select, and Interrupt Timing
For reset, stop, mode select, and interrupt timing, see
Table 9
.
2
EXTAL input low
1
(40% to 60% duty cycle)
Crystal oscillator
Square wave input
Etl
16.67
2.5
100
inf
ns
3
EXTAL cycle time
With PLL disabled
With PLL enabled
Etc
5
33.3
inf
500
ns
4
Instruction cycle time
With PLL disabled
With PLL enabled
Tc
5.00
5.00
inf
5120
ns
Notes:
1.
2.
Measured at 50% of the input transition.
The indicated duty cycle is for the specified maximum frequency for which a part is rated. The minimum clock
high or low time required for correct operation, however, remains the same at lower operating frequencies;
therefore, when a lower clock frequency is used, the signal symmetry may vary from the specified duty cycle
as long as the minimum high time and low time requirements are met.
A valid clock signal must be applied to the EXTAL pin
within 3 ms
of the DSP56720/DSP56721 being
powered up.
3.
Table 9. Reset, Stop, Mode Select, and Interrupt Timing Parameters
No.
Characteristics
Expression
Min
Max
Unit
10
Delay from RESET assertion to all pins at reset value
3
11
ns
11
Required RESET duration
4
Power on, external clock generator, PLL disabled
Power on, external clock generator, PLL enabled
2 x T
C
2 x T
C
10
10
ns
ns
13
Syn reset deassert delay time
Minimum
2
×
T
C
10
ns
Maximum (PLL enabled)
(2 x T
C
) + T
LOCK
200
us
14
Mode select setup time
10.0
ns
15
Mode select hold time
10.0
ns
16
Minimum edge-triggered interrupt request assertion width
4
ns
17
Minimum edge-triggered interrupt request deassertion width
4
ns
18
Delay from interrupt trigger to interrupt code execution
10
×
T
C + 4
54
ns
Table 8. Clock Operation (Continued)
No.
Characteristics
Symbol
Min
Max
Units
相關(guān)PDF資料
PDF描述
DSPB56721AF SymphonyTM DSP56720 / DSP56721 Multi-Core Audio Processors
DSPB56721AG SymphonyTM DSP56720 / DSP56721 Multi-Core Audio Processors
DSP56800ERM 16-bit Digital Signal Controllers
DSP56800E Digitial Signal Controller
DSP56853 Digitial Signal Controller
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DSPB56720CAG 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 24-BIT 200MHz RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(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
DSPB56721AF 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC DSP56721 RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(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
DSPB56721AG 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC DSP56721 RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(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
DSPB56721AG 制造商:Freescale Semiconductor 功能描述:Multi-Core Audio Digital Signal Processo
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