mpc850de Freescale Semiconductor, Inc, mpc850de Datasheet - Page 40

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mpc850de

Manufacturer Part Number
mpc850de
Description
Mpc850 Rev. A/b/c Communications Controller
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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IDMA Controller AC Electrical Specifications
8.2
Table 14 provides the IDMA controller timings as shown in Figure 39 to Figure 42.
40
Num
40
41
42
43
44
45
46
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)
IDMA Controller AC Electrical Specifications
Figure 38. Parallel I/O Data-In/Data-Out Timing Diagram
Figure 39. IDMA External Requests Timing Diagram
MPC850 (Rev. A/B/C) Hardware Specifications
Table 14. IDMA Controller Timing
Characteristic
All Frequencies
7.00
3.00
7.00
Min
12.00
12.00
20.00
15.00
Max
MOTOROLA
Unit
ns
ns
ns
ns
ns
ns
ns

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