TS68EN360
7.12 IDMA AC Electrical Specifications
Table 7-11. GND = 0 VDC, TC = -55 to +125°C.The electrical specifications in this document are preliminary
(See Figure 7-35 and Figure 7-36)
25.0 MHz
33.34 MHz
Number Characteristic
Min
Max
24
Min
Max
18
Unit
ns
1
CLKO1 Low to DACK, DONE Asserted
3
3
3
3
2
CLKO1 Low to DACK, DONE Negated
24
18
ns
3(1)
4(1)
5(1)
6
DREQx Asserted to AS Asserted (for DMA Bus Cycle)
Asynchronous Input Setup Time to CLKO1 Low
Asynchronous Input Hold Time from CLKO1 Low
AS to DACK Assertion Skew
3tcyc + tAIST + tCLSA
12
0
–
–
9
0
–
–
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
clk
0
20
8
0
15
6
7
DACK to DONE Assertion Skew
-8
70
28
5
-6
8
AS, DACK, DONE Width Asserted
–
52.5
20.5
4
–
8A
AS, DACK, DONE Width Asserted (Fast Termination Cycle)
Asynchronous Input Setup Time to CLKO1 Low
Asynchronous Input Hold Time from CLKO1 Low
DREQ Input Setup Time to CLKO1 Low
DREQ Input Hold Time from CLKO1 Low
DONE Input Setup Time to CLKO1 Low
DONE Input Hold Time From CLKO1 Low
DREQ Asserted to AS Asserted
–
–
10(1)
11(1)
12(2)
13(2)
14(2)
15(2)
16(2)
–
–
10
20
5
–
7.5
15
3.75
15
3.75
2
–
–
–
–
–
20
5
–
–
–
–
2
–
–
Notes: 1. These specifications are for asynchronous mode.
2. These specifications are for synchronous mode.
49
2113B–HIREL–06/05
ATMEL [ ATMEL ]
