ADSP-2104 Analog Devices, ADSP-2104 Datasheet - Page 29

• Manufacturer Part Number: ADSP-2104
• Description: Low Cost DSP Microcomputers
• Manufacturer: Analog Devices

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TIMING PARAMETERS (ADSP-2104L/ADSP-2109L)
INTERRUPTS & FLAGS
Parameter
Timing Requirement:
t
t
Switching Characteristic:
t
t
NOTES
1
2
3
following cycle. (Refer to the “Interrupt Controller” section in Chapter 3, Program Control, of the ADSP-2100 Family User’s Manual for further information on
IRQx=IRQ0, IRQ1, and IRQ2.
If IRQx and FI inputs meet t
Edge-sensitive interrupts require pulse widths greater than 10 ns. Level-sensitive interrupts must be held low until serviced.
IFS
IFH
FOH
FOD
interrupt servicing.)
IRQx
IRQx
FO Hold after CLKOUT High
FO Delay from CLKOUT High
1
1
or FI Setup before CLKOUT Low
or FI Hold after CLKOUT High
IFS
and t
IFH
setup/hold requirements, they will be recognized during the current clock cycle; otherwise they will be recognized during the
OUTPUT(S)
CLKOUT
IRQx
FLAG
FI
2, 3
Figure 26. Interrupts & Flags
2, 3
t
FOH
t
FOD
Min
33.1
18.1
0
–29–
13.824 MHz
t
IFH
t
IFS
Max
15
ADSP-2104/ADSP-2109
Min
0.25t
0.25t
Dependency
Frequency
CK
CK
+ 15
Max
Unit
ns
ns
ns
ns