Symphony DSP56720/DSP56721 Multi-Core Audio Processors, Rev. 5 Freescale Semicon" />
參數(shù)資料
型號: DSPB56721AF
廠商: Freescale Semiconductor
文件頁數(shù): 7/54頁
文件大?。?/td> 0K
描述: AUDIO PROCESSOR SYMPH 80-LQFP
標準包裝: 90
系列: DSP56K/Symphony
類型: 音頻處理器
接口: 主機接口,I²C,SAI,SPI
時鐘速率: 200MHz
非易失內存: 外部
芯片上RAM: 744kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 1.00V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 80-LQFP
供應商設備封裝: 80-LQFP(14x14)
包裝: 托盤
Symphony DSP56720/DSP56721 Multi-Core Audio Processors, Rev. 5
Freescale Semiconductor
15
2.9
Reset, Stop, Mode Select, and Interrupt Timing
Table 7 shows the reset, stop, mode select, and interrupt timing.
Table 7. Reset, Stop, Mode Select, and Interrupt Timing Parameters
No.
Characteristics
Expression
Min
Max
Unit
10
Delay from RESET assertion to all pins at reset value3
11
ns
11
Required RESET duration4
Power on, external clock generator, PLL disabled
Power on, external clock generator, PLL enabled
2
× TC
2
× TC
10
ns
13
Syn reset deassert delay time
Minimum
2
× TC
10
ns
Maximum (PLL enabled)
(2 x TC)+ TLOCK
200
us
14
Mode select setup time
10.0
ns
15
Mode select hold time
12
ns
16
Minimum edge-triggered interrupt request assertion width
7
ns
17
Minimum edge-triggered interrupt request deassertion width
4
ns
18
Delay from interrupt trigger to interrupt code execution
10
× TC + 4
54
ns
19
Duration of level sensitive IRQA assertion to ensure interrupt service
(when exiting Stop)1, 2, 3
PLL is active during Stop and Stop delay is enabled (OMR Bit 6 = 0)
(128 Kbytes × TC)
655
μs
PLL is active during Stop and Stop delay is not enabled (OMR Bit 6 =
1)
25
× TC
125
ns
PLL is not active during Stop and Stop delay is enabled (OMR Bit 6 =
0)
(128 Kbytes
× TC) +
TLOCK
855
μs
PLL is not active during Stop and Stop delay is not enabled (OMR Bit
6 = 1)
(25
× TC) + TLOCK
200
μs
20
Delay from IRQA, IRQB, IRQC, IRQD, NMI assertion to
general-purpose transfer output valid caused by first interrupt
instruction execution1
10
× TC + 3.8
53.8
ns
21
Interrupt Requests Rate1
ESAI, ESAI_1, ESAI_2, ESAI_3, SHI, SHI_1, Timer, Timer_1
12
× TC
60.0
ns
DMA
8
× TC
40.0
ns
IRQ, NMI (edge trigger)
8
× TC
40.0
ns
IRQ (level trigger)
12
× TC
60.0
ns
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