参数资料
型号: KMPC875ZT80
厂商: Freescale Semiconductor
文件页数: 31/84页
文件大小: 0K
描述: IC MPU POWERQUICC 80MHZ 256PBGA
标准包装: 2
系列: MPC8xx
处理器类型: 32-位 MPC8xx PowerQUICC
速度: 80MHz
电压: 3.3V
安装类型: 表面贴装
封装/外壳: 256-BGA
供应商设备封装: 256-PBGA(23x23)
包装: 托盘
MPC875/MPC870 PowerQUICC Hardware Specifications, Rev. 4
Freescale Semiconductor
37
Bus Signal Timing
Table 11 provides the interrupt timing for the MPC875/MPC870.
Figure 25 provides the interrupt detection timing for the external level-sensitive lines.
Figure 25. Interrupt Detection Timing for External Level Sensitive Lines
Figure 26 provides the interrupt detection timing for the external edge-sensitive lines.
Figure 26. Interrupt Detection Timing for External Edge-Sensitive Lines
Table 11. Interrupt Timing
Num
Characteristic1
1 The I39 and I40 timings describe the testing conditions under which the IRQ lines are tested when being defined as level
sensitive. The IRQ lines are synchronized internally and do not have to be asserted or negated with reference to the CLKOUT.
The I41, I42, and I43 timings are specified to allow correct functioning of the IRQ lines detection circuitry and have no direct
relation with the total system interrupt latency that the MPC875/MPC870 is able to support.
All Frequencies
Unit
Min
Max
I39
IRQx valid to CLKOUT rising edge (setup time)
6.00
ns
I40
IRQx hold time after CLKOUT
2.00
ns
I41
IRQx pulse width low
3.00
ns
I42
IRQx pulse width high
3.00
ns
I43
IRQx edge-to-edge time
4
× TCLOCKOUT
CLKOUT
IRQx
I39
I40
CLKOUT
IRQx
I41
I42
I43
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