ADSP-21062/ADSP-21062L
ADSP-21062
ADSP-21062L
Parameter
Min
Max
Min
Max
Units
Timer
Switching Characteristic:
tDTEX
CLKIN High to TIMEXP
15
15
ns
CLKIN
tDTEX
tDTEX
TIMEXP
Figure 11. Timer
ADSP-21062
Parameter
Flags
Min
Max
Units
Timing Requirements:
tSFI
tHFI
tDWRFI
FLAG3-0IN Setup Before CLKIN High1
FLAG3-0IN Hold After CLKIN High1
FLAG3-0IN Delay After RD/WR Low1
FLAG3-0IN Hold After RD/WR Deasserted1
8 + 5DT/16
0 – 5DT/16
8 + 5DT/16
0 – 5DT/16
ns
ns
ns
ns
5 + 7DT/16
5 + 7DT/16
tHFIWR
0
0
Switching Characteristics:
tDFO
FLAG3-0OUT Delay After CLKIN High
16
14
16
14
ns
ns
ns
ns
tHFO
tDFOE
tDFOD
FLAG3-0OUT Hold After CLKIN High
CLKIN High to FLAG3-0OUT Enable
CLKIN High to FLAG3-0OUT Disable
4
3
4
3
NOTE
1Flag inputs meeting these setup and hold times will affect conditional instructions in the following instruction cycle.
CLKIN
tDFOE
tDFO
tDFO
tDFOD
tHFO
FLAG3-0
OUT
FLAG OUTPUT
CLKIN
tHFI
tSFI
FLAG3-0
IN
tHFIWR
tDWRFI
RD, WR
FLAG INPUT
Figure 12. Flags
REV. C
–19–
ADI [ ADI ]
