參數(shù)資料
型號: MPC5200
廠商: 飛思卡爾半導體(中國)有限公司
英文描述: Hardware Specifications
中文描述: 硬件規(guī)格
文件頁數(shù): 17/80頁
文件大?。?/td> 790K
代理商: MPC5200
Electrical and Thermal Characteristics
MPC5200 Data Sheet, Rev. 4
Freescale Semiconductor
17
For additional information, see the MPC5200 User Manual [1].
NOTE
Make sure that the PORRESET does not carry any glitches. The MPC5200
has no filter to prevent them from getting into the chip.
NOTE
HRESET and SRESET must have a monotonous rise time.
3.3.3.1
During reset (HRESET and PORRESET) the Reset Configuration Word is cached in the related Reset
Configuration Word Register with each rising edge of the SYS_XTAL signal. If both resets (HRESET and
PORRESET) are inactive (high), the contents of this register get locked after two further SYS_XTAL
cycles (see
Figure 3
).
Reset Configuration Word
Figure 3. Reset Configuration Word Locking
Table 15. Reset Rise / Fall Timing
Description
Min
Max
Unit
SpecID
PORRESET fall time
1
ms
A3.4
PORRESET rise time
1
ms
A3.5
HRESET fall time
1
ms
A3.6
HRESET rise time
1
ms
A3.7
SRESET fall time
1
ms
A3.8
SRESET rise time
1
ms
A3.9
sample
sample
sample
sample
sample
sample
sample
sample
sample
sample
sample
sample
LOCK
RST_CFG_WRD
HRESET
PORRESET
SYS_XTAL
4096 clocks
2 clocks
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