
MPC8260A PowerQUICC II Integrated Communications Processor Hardware Specifications, Rev. 1.1
Freescale Semiconductor
15
Electrical and Thermal Characteristics
Table 8 lists CPM input characteristics.
Note that 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.
Figure 3. FCC External Clock Diagram
Table 8. AC Characteristics for CPM Inputs(1)
Notes:
1. 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.
Spec Number
Characteristic
Setup (ns)
Hold (ns)
Max
Min
66 MHz 83 MHz 66 MHz 83 MHz
sp16a
sp17a
FCC inputs—internal clock (NMSI)
10
8
0
sp16b
sp17b
FCC inputs—external clock (NMSI)
3
2.5
3
2
sp20
sp21
TDM inputs/SI
15
12
10
sp18a
sp19a
SCC/SMC/SPI/I2C inputs—internal clock (NMSI)
20
16
0
sp18b
sp19b
SCC/SMC/SPI/I2C inputs—external clock (NMSI)
5
4
5
4
sp22
sp23
PIO/TIMER/IDMA inputs
10
8
3
Serial ClKin
FCC input signals
FCC output signals
Note: When GFMR[TCI] = 1
Note: When GFMR[TCI] = 0
sp16b
sp17b
sp36b/sp37b