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2-19
AC Timings
2.7.5 CPM Timings
Table 2-19. CPM Input Characteristics
No.
Characteristic Typical
Unit
16
FCC input setup time before low-to-high clock transition
a. internal clock (BRGxO)
b. external clock (serial clock input)
10
5
ns
ns
17
FCC input hold time after low-to-high clock transition
a. internal clock (BRGxO)
b. external clock (serial clock input)
0
3
ns
ns
18
SCC/SMC/SPI/I
2
C input setup time before low-to-high clock transition
a. internal clock (BRGxO)
b. external clock (serial clock input)
20
5
ns
ns
19
SCC/SMC/SPI/I
2
C input hold time after low-to-high clock transition
a. internal clock (BRGxO)
b. external clock (serial clock input)
0
5
ns
ns
20
TDM input setup time before low-to-high serial clock transition
20
ns
21
TDM input hold time after low-to-high serial transition
20
ns
22
PIO/TIMER/DMA input setup time before low-to-high serial clock transition
10
ns
23
PIO/TIMER/DMA input hold time after low-to-high serial clock transition
3
ns
Note:
FCC, SCC, SMC, SPI, I
2
C are Non-Multiplexed Serial Interface signals.
Table 2-20. CPM Output Characteristics
No.
Characteristic Min
Max
Unit
36
FCC output delay after low-to-high clock transition
a. internal clock (BRGxO)
b. external clock (serial input clock)
0
2
6
18
ns
ns
38
SCC/SMC/SPI/I
2
C output delay after low-to-high clock transition
a. internal clock (BRGxO)
b. external clock (serial input clock)
0
0
20
30
ns
ns
40
TDM output delay after low-to-high serial clock transition
5
35
ns
42
PIO/TIMER/DMA output delay after low-to-high serial clock transition
1
14
ns
Note:
FCC, SCC, SMC, SPI, I
2
C are Non-Multiplexed Serial Interface signals.
Figure 2-14. FCC Internal Clock Diagram
BRGxO
FCC inputs
FCC outputs
16a
17a
36a