参数资料
型号: RTPXA270C0C312
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 312 MHz, RISC PROCESSOR, PBGA356
封装: 13 X 13 MM, 1 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, VFBGA-356
文件页数: 101/128页
文件大小: 1560K
代理商: RTPXA270C0C312
6-10
Electrical, Mechanical, and Thermal Specification
Intel PXA270 Processor
AC Timing Specifications
6.2.7
Standby-Mode Timing
6.2.8
Idle-Mode Timing
6.2.9
Frequency-Change Timing
Table 6-9. Standby-Mode Timing Specifications
Symbol
Description
Min
Typical
Max
Units
13M mode to standby mode entry
0.34
msec
Standby mode exit to 13M mode1
0.28
11.282
msec
Run mode to standby mode entry
0.34
msec
Standby mode exit to run mode1
0.43
0.39
11.432
msec
NOTES:
1. The 13M oscillator is programmable
2. Add 0.1ms if the wake up event is external
Table 6-10. Idle-Mode Timing Specifications
Symbol
Description
Min
Typical
Max
Units
13M mode to deep idle mode entry
1
s
Deep idle mode exit to 13M mode
1
s
Run mode to idle run mode entry
1
s
Idle run mode exit to run mode
1
s
Table 6-11. Frequency-Change Timing Specifications
Symbol
Description
Min
Typical
Max
Units
Delay between MCR command to
frequency change sequence completion
1501
s
Delay to change between turbo, half-
turbo and run modes
12
s
Delay to enter 13M mode from any Run
mode 3
1
s
Delay to exit 13M mode to any Run mode
24
s
NOTES:
1. Any change to the CCCR[2N or L] bits followed by a write to CLFCFG[F] to initiate a frequency change
sequence, results in a PLL restart
2. Changing between turbo, half-turbo and run modes does not require a PLL restart
3. Software can only change into 13M mode from any run mode
4. Assuming software uses the PLL early enable feature (CCCR[PLL_EARLY_EN] prior to a frequency
change sequence
相关PDF资料
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