mpc8250 Freescale Semiconductor, Inc, mpc8250 Datasheet - Page 13

• Manufacturer Part Number: mpc8250
• Description: Mpc8250 Powerquicc Ii Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

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
Freescale Semiconductor
1
FCC output signals
FCC output signals
Timings are measured at the pin.
sp18a
sp18b
Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of CLKIN.
sp20
sp22
Note: When GFMR[TCI] = 0
Note: When GFMR[TCI] = 1
Max
FCC input signals
Spec Number
shows the FCC external clock.
Serial ClKin
sp19a
sp19b
sp21
sp23
Min
TDM inputs/SI
SCC/SMC/SPI/I2C inputs—internal clock (NMSI)
SCC/SMC/SPI/I2C inputs—external clock (NMSI)
PIO/TIMER/IDMA inputs
sp16b
Table 8. AC Characteristics for CPM Inputs
Figure 3. FCC External Clock Diagram
MPC8250 Hardware Specifications, Rev. 1
Characteristic
sp36b/sp37b
sp17b
66 MHz 83 MHz 66 MHz 83 MHz
1
15
20
10
Setup (ns)
5
Electrical and Thermal Characteristics
sp36b/sp37b
12
16
4
8
12
0
5
3
Hold (ns)
10
0
4
3
13