Timing Requirements: t
參數(shù)資料
型號: ADSP-2186BSTZ-160
廠商: Analog Devices Inc
文件頁數(shù): 9/36頁
文件大?。?/td> 0K
描述: IC DSP CONTROLLER 16BIT 100LQFP
標準包裝: 1
系列: ADSP-21xx
類型: 定點
接口: 主機接口,串行端口
時鐘速率: 40MHz
非易失內(nèi)存: 外部
芯片上RAM: 40kB
電壓 - 輸入/輸出: 5.00V
電壓 - 核心: 5.00V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-LQFP(14x14)
包裝: 托盤
ADSP-2186
–17–
REV. B
TIMING PARAMETERS
Parameter
Min
Max
Unit
Interrupts and Flag
Timing Requirements:
tIFS
IRQx, FI, or PFx Setup before CLKOUT Low1, 2, 3, 4
0.25 tCK + 15
ns
tIFH
IRQx, FI, or PFx Hold after CLKOUT High1, 2, 3, 4
0.25 tCK
ns
Switching Characteristics:
tFOH
Flag Output Hold after CLKOUT Low5
0.25 tCK – 7
ns
tFOD
Flag Output Delay from CLKOUT Low5
0.5 tCK + 5
ns
NOTES
1If
IRQx and FI inputs meet t
IFS and tIFH setup/hold requirements, they will be recognized during the current clock cycle; otherwise the signals will be recognized on the
following cycle. (Refer to “Interrupt Controller Operation” in the Program Control chapter of the ADSP-218x DSP Hardware Reference, for further information on inter-
rupt servicing.)
2Edge-sensitive interrupts require pulsewidths greater than 10 ns; level-sensitive interrupts must be held low until serviced.
3
IRQx = IRQ0, IRQ1, IRQ2, IRQL0, IRQL1, IRQE.
4PFx = PF0, PF1, PF2, PF3, PF4, PF5, PF6, PF7.
5Flag outputs = PFx, FL0, FL1, FL2, FO.
tFOD
tFOH
tIFH
tIFS
CLKOUT
FLAG
OUTPUTS
IRQx
FI
PFx
Figure 12. Interrupts and Flags
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