adsp-21msp58 Analog Devices, Inc., adsp-21msp58 Datasheet - Page 26

• Manufacturer Part Number: adsp-21msp58
• Description: Dsp Microcomputers
• Manufacturer: Analog Devices, Inc.

ADSP-21msp58/59
Parameter
Interrupts and Flags
Timing Requirement:
t
t
Switching Characteristics:
t
t
NOTES
1
2
3
4
IFS
IFH
FOH
FOD
If IRQx and FI inputs meet t
the following cycle. (Refer to “Interrupt Controller Operation” in the Program Control chapter of the User’s Manual for further information on interrupt servicing.)
Edge-sensitive interrupts require pulse widths greater than 10 ns; level-sensitive interrupts must be held low until serviced.
IRQx = IRQ0, IRQ1, and IRQ2.
Flag Output = FL0 and FO.
IRQx or FI Setup before CLKOUT Low
IRQx or FI Hold after CLKOUT High
Flag Output Hold after CLKOUT Low
Flag Output Delay from CLKOUT Low
IFS
and t
OUTPUTS
CLKOUT
FLAG
IRQ
IFH
FI
setup/hold requirements, they will be recognized during the current clock cycle; otherwise the signals will be recognized on
x
Figure 16. Interrupts and Flags
t
FOD
1, 2, 3
4
t
4
FOH
1, 2, 3
–26–
t
I FH
t
I FS
Min
0.25t
0.25t
0.5t
CK
CK
CK
– 7
+ 15
Max
0.5t
CK
+ 5
Unit
ns
ns
ns
ns
REV. 0