XPC8255ZUIFBC Datasheet, PDF (13/41 Pages) Texas Instruments – PowerQUICC II Integrated Communications Processor Hardware Specifications

Electrical and Thermal Characteristics
Table 8. AC Characteristics for CPM Inputs¹
Spec Number
Setup Hold
Characteristic
Setup (ns)
66 MHz
Hold (ns)
66 MHz
sp16a sp17a FCC inputs—internal clock (NMSI)
10
0
sp16b sp17b FCC inputs—external clock (NMSI)
3
3
sp20 sp21 TDM inputs/SI
15
12
sp18a sp19a SCC/SMC/SPI/I2C inputs—internal clock (NMSI)
20
0
sp18b sp19b SCC/SMC/SPI/I2C inputs—external clock (NMSI)
5
5
sp22 sp23 PIO/TIMER/IDMA inputs
10
3
Note:
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.
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.
MPC8260 PowerQUICC II Integrated Communications Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
13