参数资料
型号: MPC8265ACZUMIBC
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 266 MHz, RISC PROCESSOR, PBGA480
封装: 37.5 X 37.5 MM, 1.70 MM HEIGHT, 1.27 MM PITCH, TBGA-480
文件页数: 22/111页
文件大小: 1007K
代理商: MPC8265ACZUMIBC
18
MPC826xA (HiP4) Family Hardware Specications
MOTOROLA
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Electrical and Thermal Characteristics
Figure 9 shows signal behavior for all parity modes (including ECC, RMW parity, and standard parity).
Figure 9. Parity Mode Diagram
Figure 10 shows signal behavior in MEMC mode.
Figure 10. MEMC Mode Diagram
NOTE
Generally, all MPC826xA bus and system output signals are driven from
the rising edge of the input clock (CLKin). Memory controller signals,
however, trigger on four points within a CLKin cycle. Each cycle is
divided by four internal ticks: T1, T2, T3, and T4. T1 always occurs at the
rising edge, and T3 at the falling edge, of CLKin. However, the spacing of
T2 and T4 depends on the PLL clock ratio selected, as shown in Table 13.
Table 13. Tick Spacing for Memory Controller Signals
PLL Clock Ratio
Tick Spacing (T1 Occurs at the Rising Edge of CLKin)
T2
T3
T4
1:2, 1:3, 1:4, 1:5, 1:6
1/4 CLKin
1/2 CLKin
3/4 CLKin
1:2.5
3/10 CLKin
1/2 CLKin
8/10 CLKin
1:3.5
4/14 CLKin
1/2 CLKin
11/14 CLKin
CLKin
DATA bus, ECC, and PARITY mode input signals
DP mode input signal
DP mode output signal
sp13
sp10
sp14
sp10
sp33b/sp30
CLKin
V_CLK
Memory controller signals
sp34/sp30
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