參數(shù)資料
型號: MCF5251_07
廠商: 飛思卡爾半導體(中國)有限公司
英文描述: ColdFire㈢ Microprocessor Data Sheet
中文描述: ㈢的ColdFire微處理器的數(shù)據(jù)資料
文件頁數(shù): 15/32頁
文件大小: 299K
代理商: MCF5251_07
Electrical Specifications
MCF5253 ColdFire Processor Data Sheet: Technical Data, Rev. 2.2
Freescale Semiconductor
15
Figure 3. SDRAM Bus Timing Diagram
4.2
SPDIF Timing
The Sony/Philips Digital Interface (SPDIF) timing parameters are provided in
Table 12
. SPDIF timing is
totally asynchronous, therefore there is no need for relationship with the clock.
Table 12
shows the
differences between high-low and low-high propagation delay which is called the skew.
Table 11. SDRAM Bus Timing Parameters
ID
Characteristic
Timing to 50% Points
Maximum
Units
30 pF
Load
40 pF
Load
50 pF
Load
D1
Propagation delay BCLK rising to data valid
7.88
8.8
9.6
ns
D2
Propagation delay BCLK rising to BCLKE, SDLDQM,
SDUDQM, SDWE, SDCS0, SDRAS, SDCAS valid
8.7
ns
D3
Propagation delay BCLK rising to A[24:9] valid
8.3
9.2
ns
D4
Set-up time data valid to BCLK rising
0
0
0
ns
D5
Hold time BCLK rising to data valid
0.7
0.7
0.7
ns
BCLK
data (write)
BCLKE, SDXDQM, SDWE,
SDCS0, SDRAS, SDCAS
A[24:9]
data (read)
D1
D2
D3
D4
D5
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