ADSP-3PARCBF548M01 Analog Devices Inc, ADSP-3PARCBF548M01 Datasheet - Page 47

• Manufacturer Part Number: ADSP-3PARCBF548M01
• Description: MODULE BOARD BF548
• Manufacturer: Analog Devices Inc
• Series: Blackfin®r

Specifications of ADSP-3PARCBF548M01

• Module/board Type: Processor Module
• For Use With/related Products: ADSP-BF548
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 31. Asynchronous Memory Write Cycle Timing with Asynchronous ARDY
1
2
Parameter
Timing Requirements
t
t
Switching Characteristics
t
t
t
t
S = number of programmed setup cycles, WA = number of programmed write access cycles.
Output pins include AMS3–0, ABE1–0, ADDR19–1, AOE, and AWE.
DANW
HAA
DDAT
ENDAT
DO
HO
ARDY Negated Delay from AMSx Asserted
ARDY Asserted Hold After AWE Negated
DATA15–0 Disable After CLKOUT
DATA15–0 Enable After CLKOUT
Output Delay After CLKOUT
Output Hold After CLKOUT
ADSP-BF542/ADSP-BF544/ADSP-BF547/ADSP-BF548/ADSP-BF549
DATA 15–0
ADDR19–1
CLKOUT
ABE1–0
AMSx
ARDY
AWE
Figure 16. Asynchronous Memory Write Cycle Timing with Asynchronous ARDY
2 CYCLES
2
SETUP
t
t
2
ENDAT
DO
Rev. C | Page 47 of 100 | February 2010
t
DANW
WRITE ACCESS
PROGRAMMED
2 CYCLES
1
t
DO
EXTENDED
2 CYCLES
ACCESS
t
HO
t
HAA
1 CYCLE
HOLD
t
DDAT
t
HO
Min
0.0
0.0
0.3
Max
(S + WA – 2) × t
6.0
6.0
SCLK
Unit
ns
ns
ns
ns
ns
ns