MPC8270 MOTOROLA [Motorola, Inc], MPC8270 Datasheet - Page 15

• Manufacturer Part Number: MPC8270
• Description: PowerQUICC II Family Hardware Specifications
• Manufacturer: MOTOROLA [Motorola, Inc]

6.1
Table 9 lists CPM output characteristics.
Table 10 lists CPM input characteristics.
MOTOROLA
1
1
Spec Number
Spec Number
sp36a sp37a FCC outputs—internal clock (NMSI)
sp36b sp37b FCC outputs—external clock (NMSI)
sp38a sp39a SCC/SMC/SPI/I2C outputs—internal
sp38b sp39b SCC/SMC/SPI/I2C outputs—external
sp42a sp43a PIO outputs
Setup Hold
sp16a sp17a FCC inputs—internal clock (NMSI)
sp16b sp17b FCC inputs—external clock (NMSI)
sp18a sp19a SCC/SMC/SPI/I2C inputs—internal
sp18b sp19b SCC/SMC/SPI/I2C inputs—external
sp40
sp42
sp20
sp22
Max
Output specifications are measured from the 50% level of the rising edge of CLKIN to the 50% level of the signal.
Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of CLKIN.
Timings are measured at the pin.
Timings are measured at the pin.
sp41 TDM outputs/SI
sp43 TIMER/IDMA outputs
sp21 TDM inputs/SI
sp23 PIO/TIMER/IDMA inputs
Min
CPM AC Characteristics
clock (NMSI)
clock (NMSI)
clock (NMSI)
clock (NMSI)
Although the specifications generally reference the rising edge of the
clock, the following AC timing diagrams also apply when the falling edge
is the active edge.
MPC8280 PowerQUICC II™ Family Hardware Specifications
Characteristic
Characteristic
Table 9. AC Characteristics for CPM Outputs
Table 10. AC Characteristics for CPM Inputs
NOTE
66 MHz
66 MHz
10
11
14
14
10
6
8
8
6
3
6
5
3
Maximum Delay
83 MHz 100 MHz 66 MHz
83 MHz 100 MHz 66 MHz
Setup
5.5
2.5
10
11
11
11
8
8
6
6
4
3
8
5.5
2.5
10
11
11
11
8
8
6
6
4
3
8
Value (ns)
Value (ns)
AC Electrical Characteristics
1
1
0.5
2.5
0.5
2.5
0.5
2
0
2
1
0
2
0
2
Minimum Delay
83 MHz 100 MHz
83 MHz 100 MHz
Hold
0.5
2.5
0.5
0.5
2.5
0.5
2
0
2
0
2
0
2
0.5
2.5
0.5
0.5
2.5
0.5
2
0
2
0
2
0
2
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