adsp-21060lc Analog Devices, Inc., adsp-21060lc Datasheet - Page 22

• Manufacturer Part Number: adsp-21060lc
• Description: Sharc Processor
• Manufacturer: Analog Devices, Inc.

ADSP-21060/ADSP-21060L/ADSP-21062/ADSP-21062L/ADSP-21060C/ADSP-21060LC
Clock Input
Table 9. Clock Input
1
Reset
Table 10. Reset
1
2
Parameter
Timing Requirements
t
t
t
t
Parameter
Timing Requirements
t
t
For the ADSP-21060LC, this specification is 9.5 ns min.
Applies after the power-up sequence is complete. At power-up, the processor’s internal phase-locked loop requires no more than 100 μs while RESET is low, assuming stable
Only required if multiple ADSP-2106xs must come out of reset synchronous to CLKIN with program counters (PC) equal. Not required for multiple ADSP-2106xs commu-
CK
CKL
CKH
CKRF
WRST
SRST
V
nicating over the shared bus (through the external port), because the bus arbitration logic automatically synchronizes itself after reset.
DD
and CLKIN (not including start-up time of external clock oscillator).
CLKIN Period
CLKIN Width Low
CLKIN Width High
CLKIN Rise/Fall (0.4 V to 2.0 V)
RESET Pulse Width Low
RESET Setup Before CLKIN High
RESET
CLKIN
CLKIN
1
Min
7
5
25
ADSP-21060
ADSP-21062
40 MHz, 5 V
2
Rev. F | Page 22 of 64 | March 2008
Max
100
3
Figure 9. Clock Input
Figure 10. Reset
t
CKH
Min
30
7
5
ADSP-21060
ADSP-21062
33 MHz, 5 V
t
WRST
Max
100
3
t
t
CK
CKL
Min
4t
14 + DT/2
CK
Min
25
8.75
5
ADSP-21060L
ADSP-21062L
40 MHz, 3.3 V
t
SRST
5 V and 3.3 V
Max
100
3
Max
t
CK
30
Min
8.75
5
ADSP-21060L
ADSP-21062L
33 MHz, 3.3 V
1
Max
100
3
Unit
ns
ns
Unit
ns
ns
ns
ns