MPC870 FREESCALE [Freescale Semiconductor, Inc], MPC870 Datasheet - Page 47

• Manufacturer Part Number: MPC870
• Description: Hardware Specifications
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

CPM Electrical Characteristics
13.2 IDMA Controller AC Electrical Specifications
Table 18
47
1
Applies to high-to-low mode (EDM=1)
Num
40
41
42
43
44
45
46
provides the IDMA controller timings as shown in
(Output)
DREQ
(Input)
CLKO
DREQ setup time to clock high
DREQ hold time from clock high
SDACK assertion delay from clock high
SDACK negation delay from clock low
SDACK negation delay from TA low
SDACK negation delay from clock high
TA assertion to falling edge of the clock setup time (applies to external TA)
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Figure 41. IDMA External Requests Timing Diagram
MPC875/MPC870 Hardware Specifications, Rev. 3.0
Table 18. IDMA Controller Timing
1
Characteristic
40
Figure 41
to
Figure
41
44.
TBD
Frequencies
Min
—
—
—
—
7
7
Freescale Semiconductor
All
Max
12
12
20
15
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns