mpc8250 Freescale Semiconductor, Inc, mpc8250 Datasheet - Page 17

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

Table 10
Freescale Semiconductor
1
Timings are measured at the pin.
Output specifications are measured from the 50% level of the rising edge of CLKIN to the 50% level of the signal.
sp33a
sp33b
sp31
sp32
sp34
sp35
Max
lists SIU output characteristics.
Spec Number
Activating data pipelining (setting BRx[DR] in the memory controller)
improves the AC timing. When data pipelining is activated, sp12 can be
used for data bus setup even when ECC or PARITY are used. Also, sp33a
can be used as the AC specification for DP signals.
sp30
sp30
sp30
sp30
sp30
sp30
Min
PSDVAL/TEA/TA
ADD/ADD_atr./BADDR/CI/GBL/WT
Data bus
DP
Memory controller signals/ALE
All other signals
Table 10. AC Characteristics for SIU Outputs
MPC8250 Hardware Specifications, Rev. 1
Characteristic
NOTE
66 MHz 83 MHz 66 MHz 83 MHz
Max Delay (ns)
6.5
7
8
8
6
6
1
Electrical and Thermal Characteristics
6.5
6.5
5.5
6
7
5
Min Delay (ns)
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
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