adsp-21161n Analog Devices, Inc., adsp-21161n Datasheet - Page 26

• Manufacturer Part Number: adsp-21161n
• Description: Dsp Microcomputer
• Manufacturer: Analog Devices, Inc.

ADSP-21161N
Timer
Table 13. Timer
Flags
Table 14. Flags
1
Parameter
Switching Characteristic
t
Parameter
Timing Requirement
t
t
t
t
Switching Characteristics
t
t
t
t
Flag inputs meeting these setup and hold times for instruction cycle N will affect conditional instructions in instruction cycle N+2.
DTEX
SFI
HFI
DWRFI
HFIWR
DFO
HFO
DFOE
DFOD
CLKIN
FLAG11–0
CLKIN
FLAG11–0
RD WR
,
CLKIN
TIMEXP
OUT
IN
CLKIN to TIMEXP
FLAG11–0
FLAG11–0
FLAG11–0
FLAG11–0
FLAG11–0
FLAG11–0
CLKIN to FLAG11–0
CLKIN to FLAG11–0
t
DTEX
t
DWRFI
IN
IN
IN
IN
OUT
OUT
Setup Before CLKIN
Hold After CLKIN
Delay After RD/WR Low
Hold After RD/WR Deasserted
t
Delay After CLKIN
Hold After CLKIN
DFOE
FLAG INPUT
OUT
OUT
t
SFI
Enable
Disable
1
1
Figure 18. Timer
Figure 19. Flags
t
DFO
t
t
1
HFI
HFIWR
Min
1
–26–
1
FLAG OUTPUT
t
HFO
Min
4
1
0
1
1
t
DFO
Max
7
Max
12
9
5
t
t
DTEX
DFOD
Unit
ns
Unit
ns
ns
ns
ns
ns
ns
ns
ns
REV. A