参数资料
型号: PCX7447AVGH1000NB
厂商: Atmel
文件页数: 10/52页
文件大小: 0K
描述: IC MPU 32BIT 1000MHZ 360CBGA
标准包装: 44
处理器类型: PowerPC 32-位 RISC
速度: 1.0GHz
电压: 1.1V
安装类型: 表面贴装
封装/外壳: 360-CBBGA 裸露焊盘
供应商设备封装: 360-CBGA(25x25)
包装: 托盘
18
0833E–HIREL–01/07
PC7447A
e2v semiconductors SAS 2007
6.4.4.5
Bus-to-Core Multiplier Constraints with DFS
DFS is not available for all bus-to-core multipliers as configured by PLL_CFG[0:4] during hard reset.
Specifically, because the PC7447A does not support quarter clock ratios or the 1x multiplier, the DFS
feature is limited to integer PLL multipliers of 4x and higher. The complete listing is shown in Table 6-5
Table 6-5.
Valid Divide Ratio Configurations
Bus-to-Core Multiplier Configured by
PLL_CFG[0:4] (see Table 12-1 on page 39)
Bus-to-Core Multiplier with
HID1[DFS1] = 1 (÷2)
2x
N/A
3x
N/A
4x
2x
5x
2.5x
5.5x
2x
6x
3x
6.5x
N/A
7x
3.5x
7.5x
N/A
8x
4x
8.5x
N/A
9x
4.5x
9.5x
N/A
10x
5x
10.5x
N/A
11x
5.5x
11.5x
N/A
12x
6x
12.5x
N/A
13x
6.5x
13.5x
N/A
14x
7x
15x
7.5x
16x
8x
17x
8.5x
18x
9x
20x
10x
21x
10.5x
24x
12x
28x
14x
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