参数资料
型号: SPEAR300-2
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 333 MHz, RISC MICROCONTROLLER, PBGA289
封装: 15 X 15 MM, 1.70 MM HEIGHT, 0.80 MM PITCH, ROHS COMPLIANT, LFBGA-289
文件页数: 57/83页
文件大小: 1027K
代理商: SPEAR300-2
Timing requirements
SPEAr300
60/83
Doc ID 16324 Rev 2
MHz), setting BCD bit to '1', and the second one with the clock passing through a clock
divider (83 MHz), setting BCD bit to '0'.
6.2.1
CLCD timing characteristics direct clock
Figure 13.
CLCD waveform with CLCP direct
Figure 14.
CLCD block diagram with CLCP direct
Note:
1
tSTABLE = tCLOCK direct max - (tmax + tmin)
2For tmax the maximum value is taken from the worst case and best case, while for tmin the
minimum value is taken from the worst case and best case.
3
CLCP should be delayed by {tmax + [tCLOCK direct max - (tmax + tmin)]/2} = 4.7915 ns
Table 29.
CLCD timings with CLCP direct
Parameter
Value
Frequency
tCLOCK direct max (tCLOCK )
6 ns
166 MHz
tCLOCK direct max rise (tr)
0.81 ns
tCLOCK direct max (tf)
0.87 ns
tmin
-0.04 ns
tmax
3.62 ns
tSTABLE
2.34 ns
Tmin
Tmax
CLCP
CLD[23:0],CLAC,CLLE,CLLP,
CLFP,CLPOWER
Tclock
Tr
Tf
Tstabl e
Q
SET
CLR
D
t2
t3
CLCP
CLD[23:0],CLAC,CLLE,
CLLP,CLFP,CLPOWER
CLCDCLK
t1
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